12641401251655 has 16 divisors (see below), whose sum is σ = 16551058157568. Its totient is φ = 9192460420000.

The previous prime is 12641401251649. The next prime is 12641401251667. The reversal of 12641401251655 is 55615210414621.

It is a de Polignac number, because none of the positive numbers 2^k-12641401251655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15677431 + ... + 16464040.

It is an arithmetic number, because the mean of its divisors is an integer number (1034441134848).

Almost surely, 2^{12641401251655} is an apocalyptic number.

12641401251655 is a deficient number, since it is larger than the sum of its proper divisors (3909656905913).

12641401251655 is a wasteful number, since it uses less digits than its factorization.

12641401251655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32148638.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 12641401251655 in words is "twelve trillion, six hundred forty-one billion, four hundred one million, two hundred fifty-one thousand, six hundred fifty-five".