2175304664 has 32 divisors (see below), whose sum is σ = 4407495120. Its totient is φ = 1000546176.

The previous prime is 2175304657. The next prime is 2175304667. The reversal of 2175304664 is 4664035712.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175304667) 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, 5222 + ... + 66165.

Almost surely, 2^2175304664 is an apocalyptic number.

It is an amenable number.

2175304664 is an abundant number, since it is smaller than the sum of its proper divisors (2232190456).

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

2175304664 is a wasteful number, since it uses less digits than its factorization.

2175304664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71699 (or 71695 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2175304664 is about 46640.1614920017. The cubic root of 2175304664 is about 1295.7066776989.

The spelling of 2175304664 in words is "two billion, one hundred seventy-five million, three hundred four thousand, six hundred sixty-four".