2156190162 has 16 divisors (see below), whose sum is σ = 4928434752. Its totient is φ = 616054320.

The previous prime is 2156190161. The next prime is 2156190191. The reversal of 2156190162 is 2610916512.

It is not an unprimeable number, because it can be changed into a prime (2156190161) 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, 25668889 + ... + 25668972.

It is an arithmetic number, because the mean of its divisors is an integer number (308027172).

Almost surely, 2^2156190162 is an apocalyptic number.

2156190162 is an abundant number, since it is smaller than the sum of its proper divisors (2772244590).

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

2156190162 is a wasteful number, since it uses less digits than its factorization.

2156190162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51337873.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 2156190162 is about 46434.7947341215. The cubic root of 2156190162 is about 1291.9003623795.

The spelling of 2156190162 in words is "two billion, one hundred fifty-six million, one hundred ninety thousand, one hundred sixty-two".