156913225920 has 1344 divisors, whose sum is σ = 658181462400. Its totient is φ = 35473489920.

The previous prime is 156913225913. The next prime is 156913225957. The reversal of 156913225920 is 29522319651.

156913225920 is a `hidden beast` number, since 1 + 56 + 9 + 1 + 3 + 2 + 2 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1439570826 + ... + 1439570934.

It is an arithmetic number, because the mean of its divisors is an integer number (489718350).

Almost surely, 2^156913225920 is an apocalyptic number.

156913225920 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 156913225920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329090731200).

156913225920 is an abundant number, since it is smaller than the sum of its proper divisors (501268236480).

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

156913225920 is a wasteful number, since it uses less digits than its factorization.

156913225920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 156913225920 in words is "one hundred fifty-six billion, nine hundred thirteen million, two hundred twenty-five thousand, nine hundred twenty".