13155126305612 has 12 divisors (see below), whose sum is σ = 23411665459560. Its totient is φ = 6466079031456.

The previous prime is 13155126305561. The next prime is 13155126305617. The reversal of 13155126305612 is 21650362155131.

It is a self number, because there is not a number n which added to its sum of digits gives 13155126305612.

It is not an unprimeable number, because it can be changed into a prime (13155126305617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27871030073 + ... + 27871030544.

It is an arithmetic number, because the mean of its divisors is an integer number (1950972121630).

Almost surely, 2^{13155126305612} is an apocalyptic number.

It is an amenable number.

13155126305612 is a deficient number, since it is larger than the sum of its proper divisors (10256539153948).

13155126305612 is a wasteful number, since it uses less digits than its factorization.

13155126305612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55742060680 (or 55742060678 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 13155126305612 in words is "thirteen trillion, one hundred fifty-five billion, one hundred twenty-six million, three hundred five thousand, six hundred twelve".