157522660 has 24 divisors (see below), whose sum is σ = 331938936. Its totient is φ = 62791680.

The previous prime is 157522649. The next prime is 157522667. The reversal of 157522660 is 66225751.

157522660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72182016 + 85340644 = 8496^2 + 9238^2 .

It is not an unprimeable number, because it can be changed into a prime (157522667) 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, 7581 + ... + 19300.

It is an arithmetic number, because the mean of its divisors is an integer number (13830789).

Almost surely, 2^157522660 is an apocalyptic number.

157522660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157522660 is an abundant number, since it is smaller than the sum of its proper divisors (174416276).

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

157522660 is a wasteful number, since it uses less digits than its factorization.

157522660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27183 (or 27181 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 157522660 is about 12550.8031615511. The cubic root of 157522660 is about 540.0670470020.

The spelling of 157522660 in words is "one hundred fifty-seven million, five hundred twenty-two thousand, six hundred sixty".