66663004 has 6 divisors (see below), whose sum is σ = 116660264. Its totient is φ = 33331500.

The previous prime is 66662987. The next prime is 66663013. The reversal of 66663004 is 40036666.

It is a super-2 number, since 2×66663004² = 8887912204608032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332872 + ... + 8332879.

Almost surely, 2^66663004 is an apocalyptic number.

It is an amenable number.

66663004 is a deficient number, since it is larger than the sum of its proper divisors (49997260).

66663004 is a wasteful number, since it uses less digits than its factorization.

66663004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16665755 (or 16665753 counting only the distinct ones).

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

The square root of 66663004 is about 8164.7415145857. The cubic root of 66663004 is about 405.4727072094.

The spelling of 66663004 in words is "sixty-six million, six hundred sixty-three thousand, four".