125168830505785 has 32 divisors (see below), whose sum is σ = 178429086921600. Its totient is φ = 83266907189760.

The previous prime is 125168830505701. The next prime is 125168830505791. The reversal of 125168830505785 is 587505038861521.

It is a happy number.

It is not a de Polignac number, because 125168830505785 - 2²⁹ = 125168293634873 is a prime.

It is a super-2 number, since 2×125168830505785² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2065121164 + ... + 2065181773.

It is an arithmetic number, because the mean of its divisors is an integer number (5575908966300).

Almost surely, 2^{125168830505785} is an apocalyptic number.

It is an amenable number.

125168830505785 is a deficient number, since it is larger than the sum of its proper divisors (53260256415815).

125168830505785 is a wasteful number, since it uses less digits than its factorization.

125168830505785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130303001.

The product of its (nonzero) digits is 80640000, while the sum is 64.

The spelling of 125168830505785 in words is "one hundred twenty-five trillion, one hundred sixty-eight billion, eight hundred thirty million, five hundred five thousand, seven hundred eighty-five".