66004492 has 6 divisors (see below), whose sum is σ = 115507868. Its totient is φ = 33002244.

The previous prime is 66004459. The next prime is 66004507. The reversal of 66004492 is 29440066.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250558 + ... + 8250565.

Almost surely, 2^66004492 is an apocalyptic number.

It is an amenable number.

66004492 is a deficient number, since it is larger than the sum of its proper divisors (49503376).

66004492 is a wasteful number, since it uses less digits than its factorization.

66004492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501127 (or 16501125 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66004492 is about 8124.3148634208. The cubic root of 66004492 is about 404.1331701624.

The spelling of 66004492 in words is "sixty-six million, four thousand, four hundred ninety-two".