125856915166766 has 32 divisors (see below), whose sum is σ = 224763073032960. Its totient is φ = 51731183448000.

The previous prime is 125856915166739. The next prime is 125856915166799. The reversal of 125856915166766 is 667661519658521.

It is a junction number, because it is equal to n+sod(n) for n = 125856915166693 and 125856915166702.

It is a congruent number.

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, 1858126460 + ... + 1858194191.

It is an arithmetic number, because the mean of its divisors is an integer number (7023846032280).

Almost surely, 2^{125856915166766} is an apocalyptic number.

125856915166766 is a deficient number, since it is larger than the sum of its proper divisors (98906157866194).

125856915166766 is a wasteful number, since it uses less digits than its factorization.

125856915166766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716320760.

The product of its digits is 979776000, while the sum is 74.

The spelling of 125856915166766 in words is "one hundred twenty-five trillion, eight hundred fifty-six billion, nine hundred fifteen million, one hundred sixty-six thousand, seven hundred sixty-six".