2613265164 has 18 divisors (see below), whose sum is σ = 6605753700. Its totient is φ = 871088376.

The previous prime is 2613265147. The next prime is 2613265201. The reversal of 2613265164 is 4615623162.

2613265164 is a `hidden beast` number, since 2 + 6 + 132 + 6 + 516 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 72590699 = 2613265164 / (2 + 6 + 1 + 3 + 2 + 6 + 5 + 1 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36295314 + ... + 36295385.

Almost surely, 2^2613265164 is an apocalyptic number.

It is an amenable number.

2613265164 is an abundant number, since it is smaller than the sum of its proper divisors (3992488536).

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

2613265164 is a wasteful number, since it uses less digits than its factorization.

2613265164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72590709 (or 72590704 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 2613265164 is about 51120.1052815817. The cubic root of 2613265164 is about 1377.4034287039.

The spelling of 2613265164 in words is "two billion, six hundred thirteen million, two hundred sixty-five thousand, one hundred sixty-four".