5642564664 has 32 divisors (see below), whose sum is σ = 15388813440. Its totient is φ = 1709868000.

The previous prime is 5642564657. The next prime is 5642564693. The reversal of 5642564664 is 4664652465.

It is a congruent number.

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, 10686412 + ... + 10686939.

It is an arithmetic number, because the mean of its divisors is an integer number (480900420).

Almost surely, 2^5642564664 is an apocalyptic number.

It is an amenable number.

5642564664 is an abundant number, since it is smaller than the sum of its proper divisors (9746248776).

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

5642564664 is a wasteful number, since it uses less digits than its factorization.

5642564664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373371 (or 21373367 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 48.

The square root of 5642564664 is about 75117.0064898755. The cubic root of 5642564664 is about 1780.2958587459.

The spelling of 5642564664 in words is "five billion, six hundred forty-two million, five hundred sixty-four thousand, six hundred sixty-four".