2174166564 has 12 divisors (see below), whose sum is σ = 5073055344. Its totient is φ = 724722184.

The previous prime is 2174166557. The next prime is 2174166587. The reversal of 2174166564 is 4656614712.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90590262 + ... + 90590285.

It is an arithmetic number, because the mean of its divisors is an integer number (422754612).

Almost surely, 2^2174166564 is an apocalyptic number.

It is an amenable number.

2174166564 is an abundant number, since it is smaller than the sum of its proper divisors (2898888780).

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

2174166564 is a wasteful number, since it uses less digits than its factorization.

2174166564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181180554 (or 181180552 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 2174166564 is about 46627.9590374702. The cubic root of 2174166564 is about 1295.4806708867.

The spelling of 2174166564 in words is "two billion, one hundred seventy-four million, one hundred sixty-six thousand, five hundred sixty-four".