157810656 has 96 divisors (see below), whose sum is σ = 439084800. Its totient is φ = 49489920.

The previous prime is 157810651. The next prime is 157810657. The reversal of 157810656 is 656018751.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157810651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439405 + ... + 439763.

It is an arithmetic number, because the mean of its divisors is an integer number (4573800).

Almost surely, 2^157810656 is an apocalyptic number.

157810656 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 157810656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219542400).

157810656 is an abundant number, since it is smaller than the sum of its proper divisors (281274144).

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

157810656 is a wasteful number, since it uses less digits than its factorization.

157810656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 157810656 is about 12562.2711322436. The cubic root of 157810656 is about 540.3959784221.

The spelling of 157810656 in words is "one hundred fifty-seven million, eight hundred ten thousand, six hundred fifty-six".