66331358588 has 48 divisors (see below), whose sum is σ = 128040321024. Its totient is φ = 29817291840.

The previous prime is 66331358563. The next prime is 66331358623. The reversal of 66331358588 is 88585313366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424645 + ... + 1470467.

It is an arithmetic number, because the mean of its divisors is an integer number (2667506688).

Almost surely, 2^66331358588 is an apocalyptic number.

It is an amenable number.

66331358588 is a deficient number, since it is larger than the sum of its proper divisors (61708962436).

66331358588 is a wasteful number, since it uses less digits than its factorization.

66331358588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46202 (or 46200 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 56.

The spelling of 66331358588 in words is "sixty-six billion, three hundred thirty-one million, three hundred fifty-eight thousand, five hundred eighty-eight".