2157176118 has 32 divisors (see below), whose sum is σ = 4504211712. Its totient is φ = 687447200.

The previous prime is 2157176101. The next prime is 2157176129. The reversal of 2157176118 is 8116717512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525253 + ... + 529343.

It is an arithmetic number, because the mean of its divisors is an integer number (140756616).

Almost surely, 2^2157176118 is an apocalyptic number.

2157176118 is an abundant number, since it is smaller than the sum of its proper divisors (2347035594).

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

2157176118 is a wasteful number, since it uses less digits than its factorization.

2157176118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7940.

The product of its digits is 23520, while the sum is 39.

The square root of 2157176118 is about 46445.4100853895. The cubic root of 2157176118 is about 1292.0972471188.

The spelling of 2157176118 in words is "two billion, one hundred fifty-seven million, one hundred seventy-six thousand, one hundred eighteen".