157660170 has 64 divisors (see below), whose sum is σ = 404538624. Its totient is φ = 39226880.

The previous prime is 157660133. The next prime is 157660171. The reversal of 157660170 is 71066751.

It is not an unprimeable number, because it can be changed into a prime (157660171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25504 + ... + 31076.

It is an arithmetic number, because the mean of its divisors is an integer number (6320916).

Almost surely, 2^157660170 is an apocalyptic number.

157660170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157660170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202269312).

157660170 is an abundant number, since it is smaller than the sum of its proper divisors (246878454).

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

157660170 is a wasteful number, since it uses less digits than its factorization.

157660170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 157660170 is about 12556.2801020047. The cubic root of 157660170 is about 540.2241524839.

The spelling of 157660170 in words is "one hundred fifty-seven million, six hundred sixty thousand, one hundred seventy".