12555431104502 has 16 divisors (see below), whose sum is σ = 22125654814032. Its totient is φ = 5268013050720.

The previous prime is 12555431104421. The next prime is 12555431104529. The reversal of 12555431104502 is 20540113455521.

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, 21950054093 + ... + 21950054664.

It is an arithmetic number, because the mean of its divisors is an integer number (1382853425877).

Almost surely, 2^{12555431104502} is an apocalyptic number.

12555431104502 is a deficient number, since it is larger than the sum of its proper divisors (9570223709530).

12555431104502 is a wasteful number, since it uses less digits than its factorization.

12555431104502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43900108783.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 12555431104502 in words is "twelve trillion, five hundred fifty-five billion, four hundred thirty-one million, one hundred four thousand, five hundred two".