66732970968 has 48 divisors (see below), whose sum is σ = 181305334080. Its totient is φ = 22174144704.

The previous prime is 66732970963. The next prime is 66732970979. The reversal of 66732970968 is 86907923766.

66732970968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66732970963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1439080 + ... + 1484727.

It is an arithmetic number, because the mean of its divisors is an integer number (3777194460).

Almost surely, 2^66732970968 is an apocalyptic number.

It is an amenable number.

66732970968 is an abundant number, since it is smaller than the sum of its proper divisors (114572363112).

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

66732970968 is a wasteful number, since it uses less digits than its factorization.

66732970968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924136 (or 2924129 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 63.

The spelling of 66732970968 in words is "sixty-six billion, seven hundred thirty-two million, nine hundred seventy thousand, nine hundred sixty-eight".