66733339934 has 16 divisors (see below), whose sum is σ = 105196244208. Its totient is φ = 31709869632.

The previous prime is 66733339909. The next prime is 66733339951. The reversal of 66733339934 is 43993333766.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66733339934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10482887 + ... + 10489250.

It is an arithmetic number, because the mean of its divisors is an integer number (6574765263).

Almost surely, 2^66733339934 is an apocalyptic number.

66733339934 is a deficient number, since it is larger than the sum of its proper divisors (38462904274).

66733339934 is a wasteful number, since it uses less digits than its factorization.

66733339934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972219.

The product of its digits is 19840464, while the sum is 56.

The spelling of 66733339934 in words is "sixty-six billion, seven hundred thirty-three million, three hundred thirty-nine thousand, nine hundred thirty-four".