160720810000 has 225 divisors, whose sum is σ = 412634682603. Its totient is φ = 60616080000.

The previous prime is 160720809971. The next prime is 160720810009. The reversal of 160720810000 is 18027061.

The square root of 160720810000 is 400900.

It is a perfect power (a square), and thus also a powerful number.

160720810000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12600511504 + 148120298496 = 112252^2 + 384864^2 .

It is a super-2 number, since 2×160720810000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160720810009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 761709895 + ... + 761710105.

Almost surely, 2^160720810000 is an apocalyptic number.

160720810000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160720810000 is the 400900-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160720810000

160720810000 is an abundant number, since it is smaller than the sum of its proper divisors (251913872603).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160720810000 is an frugal number, since it uses more digits than its factorization.

160720810000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

Multiplying 160720810000 by its sum of digits (25), we get a square (4018020250000 = 2004500²).

160720810000 divided by its sum of digits (25) gives a square (6428832400 = 80180²).

Adding to 160720810000 its reverse (18027061), we get a palindrome (160738837061).

The spelling of 160720810000 in words is "one hundred sixty billion, seven hundred twenty million, eight hundred ten thousand".