26445563155 has 16 divisors (see below), whose sum is σ = 36441734400. Its totient is φ = 18220865760.

The previous prime is 26445563147. The next prime is 26445563213. The reversal of 26445563155 is 55136554462.

It is not a de Polignac number, because 26445563155 - 2³ = 26445563147 is a prime.

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, 12652335 + ... + 12654424.

It is an arithmetic number, because the mean of its divisors is an integer number (2277608400).

Almost surely, 2^26445563155 is an apocalyptic number.

26445563155 is a deficient number, since it is larger than the sum of its proper divisors (9996171245).

26445563155 is a wasteful number, since it uses less digits than its factorization.

26445563155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25306794.

The product of its digits is 2160000, while the sum is 46.

The spelling of 26445563155 in words is "twenty-six billion, four hundred forty-five million, five hundred sixty-three thousand, one hundred fifty-five".