66746814404 has 12 divisors (see below), whose sum is σ = 117143547024. Its totient is φ = 33277229544.

The previous prime is 66746814391. The next prime is 66746814413. The reversal of 66746814404 is 40441864766.

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, 24042854 + ... + 24045629.

It is an arithmetic number, because the mean of its divisors is an integer number (9761962252).

Almost surely, 2^66746814404 is an apocalyptic number.

It is an amenable number.

66746814404 is a deficient number, since it is larger than the sum of its proper divisors (50396732620).

66746814404 is a wasteful number, since it uses less digits than its factorization.

66746814404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48088834 (or 48088832 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 66746814404 in words is "sixty-six billion, seven hundred forty-six million, eight hundred fourteen thousand, four hundred four".