2155002664 has 32 divisors (see below), whose sum is σ = 4222512000. Its totient is φ = 1029137472.

The previous prime is 2155002649. The next prime is 2155002679. The reversal of 2155002664 is 4662005512.

It is an interprime number because it is at equal distance from previous prime (2155002649) and next prime (2155002679).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122197 + ... + 138715.

It is an arithmetic number, because the mean of its divisors is an integer number (131953500).

Almost surely, 2^2155002664 is an apocalyptic number.

It is an amenable number.

2155002664 is a deficient number, since it is larger than the sum of its proper divisors (2067509336).

2155002664 is a wasteful number, since it uses less digits than its factorization.

2155002664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17257 (or 17253 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2155002664 is about 46422.0062470376. The cubic root of 2155002664 is about 1291.6631521921.

The spelling of 2155002664 in words is "two billion, one hundred fifty-five million, two thousand, six hundred sixty-four".