66703366674 has 40 divisors (see below), whose sum is σ = 170817090048. Its totient is φ = 19058104440.

The previous prime is 66703366669. The next prime is 66703366693. The reversal of 66703366674 is 47666330766.

66703366674 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 66703366674.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29409522 + ... + 29411789.

Almost surely, 2^66703366674 is an apocalyptic number.

66703366674 is an abundant number, since it is smaller than the sum of its proper divisors (104113723374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66703366674 is a wasteful number, since it uses less digits than its factorization.

66703366674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58821332 (or 58821323 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 54.

The spelling of 66703366674 in words is "sixty-six billion, seven hundred three million, three hundred sixty-six thousand, six hundred seventy-four".