66100604 has 12 divisors (see below), whose sum is σ = 116369904. Its totient is φ = 32852064.

The previous prime is 66100571. The next prime is 66100613. The reversal of 66100604 is 40600166.

It is a self number, because there is not a number n which added to its sum of digits gives 66100604.

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, 48809 + ... + 50144.

It is an arithmetic number, because the mean of its divisors is an integer number (9697492).

Almost surely, 2^66100604 is an apocalyptic number.

It is an amenable number.

66100604 is a deficient number, since it is larger than the sum of its proper divisors (50269300).

66100604 is a wasteful number, since it uses less digits than its factorization.

66100604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99124 (or 99122 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 66100604 is about 8130.2277950867. The cubic root of 66100604 is about 404.3292336328.

The spelling of 66100604 in words is "sixty-six million, one hundred thousand, six hundred four".