66732004 has 24 divisors (see below), whose sum is σ = 123959808. Its totient is φ = 31324800.

The previous prime is 66731999. The next prime is 66732007. The reversal of 66732004 is 40023766.

It is not an unprimeable number, because it can be changed into a prime (66732007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33229 + ... + 35179.

It is an arithmetic number, because the mean of its divisors is an integer number (5164992).

Almost surely, 2^66732004 is an apocalyptic number.

It is an amenable number.

66732004 is a deficient number, since it is larger than the sum of its proper divisors (57227804).

66732004 is a wasteful number, since it uses less digits than its factorization.

66732004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475 (or 2473 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 66732004 is about 8168.9659076287. The cubic root of 66732004 is about 405.6125547403.

The spelling of 66732004 in words is "sixty-six million, seven hundred thirty-two thousand, four".