12339566776 has 8 divisors (see below), whose sum is σ = 23136687720. Its totient is φ = 6169783384.

The previous prime is 12339566737. The next prime is 12339566779. The reversal of 12339566776 is 67766593321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339566779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771222916 + ... + 771222931.

It is an arithmetic number, because the mean of its divisors is an integer number (2892085965).

Almost surely, 2^12339566776 is an apocalyptic number.

It is an amenable number.

12339566776 is a deficient number, since it is larger than the sum of its proper divisors (10797120944).

12339566776 is a wasteful number, since it uses less digits than its factorization.

12339566776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542445853 (or 1542445849 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 55.

The spelling of 12339566776 in words is "twelve billion, three hundred thirty-nine million, five hundred sixty-six thousand, seven hundred seventy-six".