66729750926 has 16 divisors (see below), whose sum is σ = 108995965200. Its totient is φ = 30518869248.

The previous prime is 66729750911. The next prime is 66729750943. The reversal of 66729750926 is 62905792766.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30275555 + ... + 30277758.

It is an arithmetic number, because the mean of its divisors is an integer number (6812247825).

Almost surely, 2^66729750926 is an apocalyptic number.

66729750926 is a deficient number, since it is larger than the sum of its proper divisors (42266214274).

66729750926 is a wasteful number, since it uses less digits than its factorization.

66729750926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60553363.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 66729750926 in words is "sixty-six billion, seven hundred twenty-nine million, seven hundred fifty thousand, nine hundred twenty-six".