12339757665 has 96 divisors (see below), whose sum is σ = 22683024000. Its totient is φ = 6196248576.

The previous prime is 12339757643. The next prime is 12339757673. The reversal of 12339757665 is 56675793321.

12339757665 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 9 + 7 + 576 + 65 = 666.

It is not a de Polignac number, because 12339757665 - 2⁹ = 12339757153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10701729 + ... + 10702881.

It is an arithmetic number, because the mean of its divisors is an integer number (236281500).

Almost surely, 2^12339757665 is an apocalyptic number.

12339757665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12339757665 is a deficient number, since it is larger than the sum of its proper divisors (10343266335).

12339757665 is a wasteful number, since it uses less digits than its factorization.

12339757665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1388 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 54.

The spelling of 12339757665 in words is "twelve billion, three hundred thirty-nine million, seven hundred fifty-seven thousand, six hundred sixty-five".