66993076 has 12 divisors (see below), whose sum is σ = 117594400. Its totient is φ = 33394680.

The previous prime is 66993037. The next prime is 66993083. The reversal of 66993076 is 67039966.

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, 23976 + ... + 26623.

Almost surely, 2^66993076 is an apocalyptic number.

It is an amenable number.

66993076 is a deficient number, since it is larger than the sum of its proper divisors (50601324).

66993076 is a wasteful number, since it uses less digits than its factorization.

66993076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50934 (or 50932 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 66993076 is about 8184.9298103282. The cubic root of 66993076 is about 406.1408184387.

The spelling of 66993076 in words is "sixty-six million, nine hundred ninety-three thousand, seventy-six".