66976962904 has 16 divisors (see below), whose sum is σ = 125665605000. Its totient is φ = 33466134912.

The previous prime is 66976962887. The next prime is 66976962907. The reversal of 66976962904 is 40926967966.

It is a super-2 number, since 2×66976962904² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66976962907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780577 + ... + 2804560.

Almost surely, 2^66976962904 is an apocalyptic number.

It is an amenable number.

66976962904 is a deficient number, since it is larger than the sum of its proper divisors (58688642096).

66976962904 is a wasteful number, since it uses less digits than its factorization.

66976962904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586642 (or 5586638 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 64.

The spelling of 66976962904 in words is "sixty-six billion, nine hundred seventy-six million, nine hundred sixty-two thousand, nine hundred four".