12955766745744 has 45 divisors (see below), whose sum is σ = 36258273648259. Its totient is φ = 4318574517600.

The previous prime is 12955766745739. The next prime is 12955766745773. The reversal of 12955766745744 is 44754766755921.

The square root of 12955766745744 is 3599412.

It is a perfect power (a square), and thus also a powerful number.

12955766745744 is a `hidden beast` number, since 1 + 2 + 9 + 5 + 5 + 76 + 67 + 457 + 44 = 666.

It is a super-2 number, since 2×12955766745744² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43042969 + ... + 43342919.

Almost surely, 2^{12955766745744} is an apocalyptic number.

12955766745744 is the 3599412-nd square number.

It is an amenable number.

12955766745744 is an abundant number, since it is smaller than the sum of its proper divisors (23302506902515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12955766745744 is an frugal number, since it uses more digits than its factorization.

12955766745744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599916 (or 299956 counting only the distinct ones).

The product of its digits is 1778112000, while the sum is 72.

The spelling of 12955766745744 in words is "twelve trillion, nine hundred fifty-five billion, seven hundred sixty-six million, seven hundred forty-five thousand, seven hundred forty-four".