66976712952 has 64 divisors (see below), whose sum is σ = 168714675360. Its totient is φ = 22156492800.

The previous prime is 66976712951. The next prime is 66976712963. The reversal of 66976712952 is 25921767966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66976712951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674952 + ... + 1714472.

Almost surely, 2^66976712952 is an apocalyptic number.

It is an amenable number.

66976712952 is an abundant number, since it is smaller than the sum of its proper divisors (101737962408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66976712952 is a wasteful number, since it uses less digits than its factorization.

66976712952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40064 (or 40060 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The spelling of 66976712952 in words is "sixty-six billion, nine hundred seventy-six million, seven hundred twelve thousand, nine hundred fifty-two".