157165878 has 16 divisors (see below), whose sum is σ = 315979776. Its totient is φ = 52113960.

The previous prime is 157165849. The next prime is 157165889. The reversal of 157165878 is 878561751.

157165878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157165878² = 49402226415021768, which contains 22 as substring.

It is a congruent number.

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, 67426 + ... + 69717.

It is an arithmetic number, because the mean of its divisors is an integer number (19748736).

Almost surely, 2^157165878 is an apocalyptic number.

157165878 is an abundant number, since it is smaller than the sum of its proper divisors (158813898).

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

157165878 is a wasteful number, since it uses less digits than its factorization.

157165878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137339.

The product of its digits is 470400, while the sum is 48.

The square root of 157165878 is about 12536.5815914866. The cubic root of 157165878 is about 539.6589959533.

The spelling of 157165878 in words is "one hundred fifty-seven million, one hundred sixty-five thousand, eight hundred seventy-eight".