66737040700 has 72 divisors (see below), whose sum is σ = 161838172944. Its totient is φ = 23676096000.

The previous prime is 66737040631. The next prime is 66737040763. The reversal of 66737040700 is 704073766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 694779 + ... + 784978.

It is an arithmetic number, because the mean of its divisors is an integer number (2247752402).

Almost surely, 2^66737040700 is an apocalyptic number.

It is an amenable number.

66737040700 is an abundant number, since it is smaller than the sum of its proper divisors (95101132244).

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

66737040700 is a wasteful number, since it uses less digits than its factorization.

66737040700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479823 (or 1479816 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 40.

The spelling of 66737040700 in words is "sixty-six billion, seven hundred thirty-seven million, forty thousand, seven hundred".