157907556 has 120 divisors (see below), whose sum is σ = 440304480. Its totient is φ = 49206528.

The previous prime is 157907507. The next prime is 157907591. The reversal of 157907556 is 655709751.

It is a happy number.

157907556 is a `hidden beast` number, since 1 + 5 + 7 + 90 + 7 + 556 = 666.

157907556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 695515 + ... + 695741.

It is an arithmetic number, because the mean of its divisors is an integer number (3669204).

Almost surely, 2^157907556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157907556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220152240).

157907556 is an abundant number, since it is smaller than the sum of its proper divisors (282396924).

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

157907556 is a wasteful number, since it uses less digits than its factorization.

157907556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 330750, while the sum is 45.

The square root of 157907556 is about 12566.1273270646. The cubic root of 157907556 is about 540.5065616945.

The spelling of 157907556 in words is "one hundred fifty-seven million, nine hundred seven thousand, five hundred fifty-six".