66933433966 has 32 divisors (see below), whose sum is σ = 120857425920. Its totient is φ = 27159040800.

The previous prime is 66933433933. The next prime is 66933434017.

66933433966 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 66933433966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353571 + ... + 508801.

It is an arithmetic number, because the mean of its divisors is an integer number (3776794560).

Almost surely, 2^66933433966 is an apocalyptic number.

66933433966 is a deficient number, since it is larger than the sum of its proper divisors (53923991954).

66933433966 is a wasteful number, since it uses less digits than its factorization.

66933433966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156880.

The product of its digits is 34012224, while the sum is 58.

The spelling of 66933433966 in words is "sixty-six billion, nine hundred thirty-three million, four hundred thirty-three thousand, nine hundred sixty-six".