125990838166 has 16 divisors (see below), whose sum is σ = 195591979008. Its totient is φ = 60804124200.

The previous prime is 125990838161. The next prime is 125990838179. The reversal of 125990838166 is 661838099521.

It is a self number, because there is not a number n which added to its sum of digits gives 125990838166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125990838161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629140 + ... + 2676631.

It is an arithmetic number, because the mean of its divisors is an integer number (12224498688).

Almost surely, 2^125990838166 is an apocalyptic number.

125990838166 is a deficient number, since it is larger than the sum of its proper divisors (69601140842).

125990838166 is a wasteful number, since it uses less digits than its factorization.

125990838166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306187.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 125990838166 in words is "one hundred twenty-five billion, nine hundred ninety million, eight hundred thirty-eight thousand, one hundred sixty-six".