6642064604 has 24 divisors (see below), whose sum is σ = 13287149568. Its totient is φ = 2845951920.

The previous prime is 6642064603. The next prime is 6642064613. The reversal of 6642064604 is 4064602466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642064603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110717 + ... + 159819.

It is an arithmetic number, because the mean of its divisors is an integer number (553631232).

Almost surely, 2^6642064604 is an apocalyptic number.

It is an amenable number.

6642064604 is an abundant number, since it is smaller than the sum of its proper divisors (6645084964).

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

6642064604 is a wasteful number, since it uses less digits than its factorization.

6642064604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53945 (or 53943 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 6642064604 is about 81498.8625932902. The cubic root of 6642064604 is about 1879.7540613093.

The spelling of 6642064604 in words is "six billion, six hundred forty-two million, sixty-four thousand, six hundred four".