74672216566 has 16 divisors (see below), whose sum is σ = 112634751600. Its totient is φ = 37127870208.

The previous prime is 74672216561. The next prime is 74672216573. The reversal of 74672216566 is 66561227647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74672216561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119950 + ... + 404638.

It is an arithmetic number, because the mean of its divisors is an integer number (7039671975).

Almost surely, 2^74672216566 is an apocalyptic number.

74672216566 is a deficient number, since it is larger than the sum of its proper divisors (37962535034).

74672216566 is a wasteful number, since it uses less digits than its factorization.

74672216566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285423.

The product of its digits is 5080320, while the sum is 52.

The spelling of 74672216566 in words is "seventy-four billion, six hundred seventy-two million, two hundred sixteen thousand, five hundred sixty-six".