66045004 has 12 divisors (see below), whose sum is σ = 119307328. Its totient is φ = 31957200.

The previous prime is 66044989. The next prime is 66045041. The reversal of 66045004 is 40054066.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 66045004.

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, 266187 + ... + 266434.

Almost surely, 2^66045004 is an apocalyptic number.

It is an amenable number.

66045004 is a deficient number, since it is larger than the sum of its proper divisors (53262324).

66045004 is a wasteful number, since it uses less digits than its factorization.

66045004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532656 (or 532654 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 66045004 is about 8126.8077373591. The cubic root of 66045004 is about 404.2158357205.

The spelling of 66045004 in words is "sixty-six million, forty-five thousand, four".