66366004 has 12 divisors (see below), whose sum is σ = 117611200. Its totient is φ = 32762808.

The previous prime is 66365969. The next prime is 66366023. The reversal of 66366004 is 40066366.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 104694 + ... + 105325.

Almost surely, 2^66366004 is an apocalyptic number.

It is an amenable number.

66366004 is a deficient number, since it is larger than the sum of its proper divisors (51245196).

66366004 is a wasteful number, since it uses less digits than its factorization.

66366004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210102 (or 210100 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 66366004 is about 8146.5332504078. The cubic root of 66366004 is about 404.8696506797.

The spelling of 66366004 in words is "sixty-six million, three hundred sixty-six thousand, four".