157640560 has 160 divisors (see below), whose sum is σ = 462684672. Its totient is φ = 48522240.

The previous prime is 157640543. The next prime is 157640579. The reversal of 157640560 is 65046751.

It is a happy number.

157640560 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 2×157640560² = 49701092314227200, 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 31 ways as a sum of consecutive naturals, for example, 967039 + ... + 967201.

Almost surely, 2^157640560 is an apocalyptic number.

157640560 is a gapful number since it is divisible by the number (10) 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 157640560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231342336).

157640560 is an abundant number, since it is smaller than the sum of its proper divisors (305044112).

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

157640560 is a wasteful number, since it uses less digits than its factorization.

157640560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 345 counting only the distinct ones).

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

The square root of 157640560 is about 12555.4991935805. The cubic root of 157640560 is about 540.2017536014.

The spelling of 157640560 in words is "one hundred fifty-seven million, six hundred forty thousand, five hundred sixty".