5651643264 has 64 divisors (see below), whose sum is σ = 15160916880. Its totient is φ = 1865216000.

The previous prime is 5651643259. The next prime is 5651643307. The reversal of 5651643264 is 4623461565.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34077 + ... + 111644.

Almost surely, 2^5651643264 is an apocalyptic number.

It is an amenable number.

5651643264 is an abundant number, since it is smaller than the sum of its proper divisors (9509273616).

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

5651643264 is a wasteful number, since it uses less digits than its factorization.

5651643264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145839 (or 145827 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 5651643264 is about 75177.4119267217. The cubic root of 5651643264 is about 1781.2501490034.

The spelling of 5651643264 in words is "five billion, six hundred fifty-one million, six hundred forty-three thousand, two hundred sixty-four".