66773670434 has 16 divisors (see below), whose sum is σ = 101866874400. Its totient is φ = 32818142784.

The previous prime is 66773670409. The next prime is 66773670443. The reversal of 66773670434 is 43407637766.

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, 2287322 + ... + 2316330.

It is an arithmetic number, because the mean of its divisors is an integer number (6366679650).

Almost surely, 2^66773670434 is an apocalyptic number.

66773670434 is a deficient number, since it is larger than the sum of its proper divisors (35093203966).

66773670434 is a wasteful number, since it uses less digits than its factorization.

66773670434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48577.

The product of its (nonzero) digits is 10668672, while the sum is 53.

The spelling of 66773670434 in words is "sixty-six billion, seven hundred seventy-three million, six hundred seventy thousand, four hundred thirty-four".