2160166672 has 40 divisors (see below), whose sum is σ = 4292147160. Its totient is φ = 1052574720.

The previous prime is 2160166663. The next prime is 2160166681. The reversal of 2160166672 is 2766610612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2160166663) and next prime (2160166681).

It can be written as a sum of positive squares in 4 ways, for example, as 1263376 + 2158903296 = 1124^2 + 46464^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093878 + ... + 1095850.

It is an arithmetic number, because the mean of its divisors is an integer number (107303679).

Almost surely, 2^2160166672 is an apocalyptic number.

It is an amenable number.

2160166672 is a deficient number, since it is larger than the sum of its proper divisors (2131980488).

2160166672 is a wasteful number, since it uses less digits than its factorization.

2160166672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2160166672 is about 46477.5932251230. The cubic root of 2160166672 is about 1292.6940616768.

The spelling of 2160166672 in words is "two billion, one hundred sixty million, one hundred sixty-six thousand, six hundred seventy-two".