12764686655 has 8 divisors (see below), whose sum is σ = 17505856032. Its totient is φ = 8752927968.

The previous prime is 12764686621. The next prime is 12764686667. The reversal of 12764686655 is 55668646721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12764686655 - 2⁸ = 12764686399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12764686655.

It is a congruent number.

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, 182352632 + ... + 182352701.

It is an arithmetic number, because the mean of its divisors is an integer number (2188232004).

Almost surely, 2^12764686655 is an apocalyptic number.

12764686655 is a deficient number, since it is larger than the sum of its proper divisors (4741169377).

12764686655 is an equidigital number, since it uses as much as digits as its factorization.

12764686655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364705345.

The product of its digits is 14515200, while the sum is 56.

The spelling of 12764686655 in words is "twelve billion, seven hundred sixty-four million, six hundred eighty-six thousand, six hundred fifty-five".