156897285120 has 264 divisors, whose sum is σ = 563784477984. Its totient is φ = 41838944256.

The previous prime is 156897285109. The next prime is 156897285191. The reversal of 156897285120 is 21582798651.

156897285120 is a `hidden beast` number, since 1 + 56 + 8 + 9 + 72 + 8 + 512 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1181107 + ... + 1307213.

Almost surely, 2^156897285120 is an apocalyptic number.

156897285120 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 156897285120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281892238992).

156897285120 is an abundant number, since it is smaller than the sum of its proper divisors (406887192864).

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

156897285120 is an equidigital number, since it uses as much as digits as its factorization.

156897285120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126147 (or 126117 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 156897285120 in words is "one hundred fifty-six billion, eight hundred ninety-seven million, two hundred eighty-five thousand, one hundred twenty".