125816444226 has 24 divisors (see below), whose sum is σ = 297384323184. Its totient is φ = 38126195160.

The previous prime is 125816444197. The next prime is 125816444231. The reversal of 125816444226 is 622444618521.

125816444226 is a `hidden beast` number, since 1 + 2 + 581 + 6 + 4 + 4 + 42 + 26 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317718096 + ... + 317718491.

It is an arithmetic number, because the mean of its divisors is an integer number (12391013466).

Almost surely, 2^125816444226 is an apocalyptic number.

125816444226 is an abundant number, since it is smaller than the sum of its proper divisors (171567878958).

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

125816444226 is a wasteful number, since it uses less digits than its factorization.

125816444226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635436606 (or 635436603 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 125816444226 in words is "one hundred twenty-five billion, eight hundred sixteen million, four hundred forty-four thousand, two hundred twenty-six".