160421520 has 320 divisors, whose sum is σ = 620960256. Its totient is φ = 33423360.

The previous prime is 160421507. The next prime is 160421593. The reversal of 160421520 is 25124061.

160421520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×160421520² = 51470128158220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1170892 + ... + 1171028.

Almost surely, 2^160421520 is an apocalyptic number.

160421520 is a gapful number since it is divisible by the number (10) 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 160421520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310480128).

160421520 is an abundant number, since it is smaller than the sum of its proper divisors (460538736).

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

160421520 is a wasteful number, since it uses less digits than its factorization.

160421520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 160421520 is about 12665.7617220600. The cubic root of 160421520 is about 543.3598474856.

Adding to 160421520 its reverse (25124061), we get a palindrome (185545581).

The spelling of 160421520 in words is "one hundred sixty million, four hundred twenty-one thousand, five hundred twenty".