157540668 has 24 divisors (see below), whose sum is σ = 367968720. Its totient is φ = 52460160.

The previous prime is 157540661. The next prime is 157540681. The reversal of 157540668 is 866045751.

157540668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157540661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6688 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (15332030).

Almost surely, 2^157540668 is an apocalyptic number.

It is an amenable number.

157540668 is an abundant number, since it is smaller than the sum of its proper divisors (210428052).

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

157540668 is a wasteful number, since it uses less digits than its factorization.

157540668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357 (or 13355 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 157540668 is about 12551.5205453363. The cubic root of 157540668 is about 540.0876263836.

The spelling of 157540668 in words is "one hundred fifty-seven million, five hundred forty thousand, six hundred sixty-eight".