66973370336 has 12 divisors (see below), whose sum is σ = 131853822912. Its totient is φ = 33486685152.

The previous prime is 66973370311. The next prime is 66973370411. The reversal of 66973370336 is 63307337966.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1046458880 + ... + 1046458943.

It is an arithmetic number, because the mean of its divisors is an integer number (10987818576).

Almost surely, 2^66973370336 is an apocalyptic number.

It is an amenable number.

66973370336 is a deficient number, since it is larger than the sum of its proper divisors (64880452576).

66973370336 is a wasteful number, since it uses less digits than its factorization.

66973370336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092917833 (or 2092917825 counting only the distinct ones).

The product of its (nonzero) digits is 7715736, while the sum is 53.

The spelling of 66973370336 in words is "sixty-six billion, nine hundred seventy-three million, three hundred seventy thousand, three hundred thirty-six".