66404792 has 16 divisors (see below), whose sum is σ = 124671960. Its totient is φ = 33158944.

The previous prime is 66404777. The next prime is 66404801. The reversal of 66404792 is 29740466.

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, 1598 + ... + 11634.

Almost surely, 2^66404792 is an apocalyptic number.

It is an amenable number.

66404792 is a deficient number, since it is larger than the sum of its proper divisors (58267168).

66404792 is a wasteful number, since it uses less digits than its factorization.

66404792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870 (or 10866 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 66404792 is about 8148.9135472160. The cubic root of 66404792 is about 404.9485114649.

The spelling of 66404792 in words is "sixty-six million, four hundred four thousand, seven hundred ninety-two".