2656630164 has 12 divisors (see below), whose sum is σ = 6198803744. Its totient is φ = 885543384.

The previous prime is 2656630129. The next prime is 2656630177. The reversal of 2656630164 is 4610366562.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110692912 + ... + 110692935.

Almost surely, 2^2656630164 is an apocalyptic number.

It is an amenable number.

2656630164 is an abundant number, since it is smaller than the sum of its proper divisors (3542173580).

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

2656630164 is a wasteful number, since it uses less digits than its factorization.

2656630164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221385854 (or 221385852 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 2656630164 is about 51542.5083208025. The cubic root of 2656630164 is about 1384.9806309550.

The spelling of 2656630164 in words is "two billion, six hundred fifty-six million, six hundred thirty thousand, one hundred sixty-four".