125018804418 has 16 divisors (see below), whose sum is σ = 251333142816. Its totient is φ = 41457012480.

The previous prime is 125018804381. The next prime is 125018804467. The reversal of 125018804418 is 814408810521.

It is a super-2 number, since 2×125018804418² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125018804418.

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, 53979328 + ... + 53981643.

It is an arithmetic number, because the mean of its divisors is an integer number (15708321426).

Almost surely, 2^125018804418 is an apocalyptic number.

125018804418 is an abundant number, since it is smaller than the sum of its proper divisors (126314338398).

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

125018804418 is a wasteful number, since it uses less digits than its factorization.

125018804418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107961169.

The product of its (nonzero) digits is 81920, while the sum is 42.

The spelling of 125018804418 in words is "one hundred twenty-five billion, eighteen million, eight hundred four thousand, four hundred eighteen".