160720736 has 48 divisors (see below), whose sum is σ = 346223808. Its totient is φ = 72835200.

The previous prime is 160720733. The next prime is 160720793. The reversal of 160720736 is 637027061.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160720733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197771 + ... + 198581.

It is an arithmetic number, because the mean of its divisors is an integer number (7212996).

Almost surely, 2^160720736 is an apocalyptic number.

160720736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160720736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173111904).

160720736 is an abundant number, since it is smaller than the sum of its proper divisors (185503072).

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

160720736 is a wasteful number, since it uses less digits than its factorization.

160720736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 160720736 is about 12677.5682210746. The cubic root of 160720736 is about 543.6974600928.

Adding to 160720736 its reverse (637027061), we get a palindrome (797747797).

The spelling of 160720736 in words is "one hundred sixty million, seven hundred twenty thousand, seven hundred thirty-six".