125639160660 has 72 divisors (see below), whose sum is σ = 410421265800. Its totient is φ = 30926562048.

The previous prime is 125639160659. The next prime is 125639160683. The reversal of 125639160660 is 66061936521.

125639160660 is a `hidden beast` number, since 1 + 2 + 5 + 6 + 39 + 1 + 606 + 6 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 21086524944 + 104552635716 = 145212^2 + 323346^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26843635 + ... + 26848314.

Almost surely, 2^125639160660 is an apocalyptic number.

125639160660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125639160660 is an abundant number, since it is smaller than the sum of its proper divisors (284782105140).

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

125639160660 is a wasteful number, since it uses less digits than its factorization.

125639160660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53691977 (or 53691972 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 125639160660 in words is "one hundred twenty-five billion, six hundred thirty-nine million, one hundred sixty thousand, six hundred sixty".