2604531664 has 20 divisors (see below), whose sum is σ = 5767177504. Its totient is φ = 1116227808.

The previous prime is 2604531659. The next prime is 2604531703. The reversal of 2604531664 is 4661354062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11627262 + ... + 11627485.

Almost surely, 2^2604531664 is an apocalyptic number.

It is an amenable number.

2604531664 is an abundant number, since it is smaller than the sum of its proper divisors (3162645840).

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

2604531664 is a wasteful number, since it uses less digits than its factorization.

2604531664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23254762 (or 23254756 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2604531664 is about 51034.6124115781. The cubic root of 2604531664 is about 1375.8672944175.

The spelling of 2604531664 in words is "two billion, six hundred four million, five hundred thirty-one thousand, six hundred sixty-four".