156164520 has 64 divisors (see below), whose sum is σ = 474937920. Its totient is φ = 41071104.

The previous prime is 156164513. The next prime is 156164521. The reversal of 156164520 is 25461651.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (156164521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154 + ... + 17673.

It is an arithmetic number, because the mean of its divisors is an integer number (7420905).

Almost surely, 2^156164520 is an apocalyptic number.

156164520 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 156164520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237468960).

156164520 is an abundant number, since it is smaller than the sum of its proper divisors (318773400).

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

156164520 is a wasteful number, since it uses less digits than its factorization.

156164520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17914 (or 17910 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 156164520 is about 12496.5803322349. The cubic root of 156164520 is about 538.5104353503.

The spelling of 156164520 in words is "one hundred fifty-six million, one hundred sixty-four thousand, five hundred twenty".