157309664 has 24 divisors (see below), whose sum is σ = 326004840. Its totient is φ = 74514816.

The previous prime is 157309657. The next prime is 157309679. The reversal of 157309664 is 466903751.

157309664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128759 + ... + 129974.

It is an arithmetic number, because the mean of its divisors is an integer number (13583535).

Almost surely, 2^157309664 is an apocalyptic number.

It is an amenable number.

157309664 is an abundant number, since it is smaller than the sum of its proper divisors (168695176).

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

157309664 is a wasteful number, since it uses less digits than its factorization.

157309664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258762 (or 258754 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 157309664 is about 12542.3149378414. The cubic root of 157309664 is about 539.8235180031.

The spelling of 157309664 in words is "one hundred fifty-seven million, three hundred nine thousand, six hundred sixty-four".