12276776276655 has 16 divisors (see below), whose sum is σ = 21428554955904. Its totient is φ = 5952376376480.

The previous prime is 12276776276587. The next prime is 12276776276671. The reversal of 12276776276655 is 55667267767221.

It is not a de Polignac number, because 12276776276655 - 2¹⁴ = 12276776260271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12276776276655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37202352189 + ... + 37202352518.

It is an arithmetic number, because the mean of its divisors is an integer number (1339284684744).

Almost surely, 2^{12276776276655} is an apocalyptic number.

12276776276655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12276776276655 is a deficient number, since it is larger than the sum of its proper divisors (9151778679249).

12276776276655 is a wasteful number, since it uses less digits than its factorization.

12276776276655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74404704726.

The product of its digits is 622339200, while the sum is 69.

The spelling of 12276776276655 in words is "twelve trillion, two hundred seventy-six billion, seven hundred seventy-six million, two hundred seventy-six thousand, six hundred fifty-five".