2651265164 has 24 divisors (see below), whose sum is σ = 4755529968. Its totient is φ = 1292578560.

The previous prime is 2651265157. The next prime is 2651265179. The reversal of 2651265164 is 4615621562.

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, 401312 + ... + 407864.

It is an arithmetic number, because the mean of its divisors is an integer number (198147082).

Almost surely, 2^2651265164 is an apocalyptic number.

It is an amenable number.

2651265164 is a deficient number, since it is larger than the sum of its proper divisors (2104264804).

2651265164 is a wasteful number, since it uses less digits than its factorization.

2651265164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9065 (or 9063 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 2651265164 is about 51490.4375976744. The cubic root of 2651265164 is about 1384.0476910905.

The spelling of 2651265164 in words is "two billion, six hundred fifty-one million, two hundred sixty-five thousand, one hundred sixty-four".