157664256 has 88 divisors (see below), whose sum is σ = 445099680. Its totient is φ = 49446912.

The previous prime is 157664231. The next prime is 157664279. The reversal of 157664256 is 652466751.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50715 + ... + 53733.

Almost surely, 2^157664256 is an apocalyptic number.

157664256 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 157664256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222549840).

157664256 is an abundant number, since it is smaller than the sum of its proper divisors (287435424).

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

157664256 is a wasteful number, since it uses less digits than its factorization.

157664256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059 (or 3041 counting only the distinct ones).

The product of its digits is 302400, while the sum is 42.

The square root of 157664256 is about 12556.4428083753. The cubic root of 157664256 is about 540.2288193502.

The spelling of 157664256 in words is "one hundred fifty-seven million, six hundred sixty-four thousand, two hundred fifty-six".