66829457936 has 20 divisors (see below), whose sum is σ = 131042102352. Its totient is φ = 33012141216.

The previous prime is 66829457921. The next prime is 66829457951. The reversal of 66829457936 is 63975492866.

It is an interprime number because it is at equal distance from previous prime (66829457921) and next prime (66829457951).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25160366 + ... + 25163021.

Almost surely, 2^66829457936 is an apocalyptic number.

It is an amenable number.

66829457936 is a deficient number, since it is larger than the sum of its proper divisors (64212644416).

66829457936 is a wasteful number, since it uses less digits than its factorization.

66829457936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50323478 (or 50323472 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 65.

The spelling of 66829457936 in words is "sixty-six billion, eight hundred twenty-nine million, four hundred fifty-seven thousand, nine hundred thirty-six".