125660810172 has 48 divisors (see below), whose sum is σ = 294997248000. Its totient is φ = 41632186560.

The previous prime is 125660810129. The next prime is 125660810183. The reversal of 125660810172 is 271018066521.

It is a self number, because there is not a number n which added to its sum of digits gives 125660810172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254229 + ... + 1350707.

It is an arithmetic number, because the mean of its divisors is an integer number (6145776000).

Almost surely, 2^125660810172 is an apocalyptic number.

125660810172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125660810172 is an abundant number, since it is smaller than the sum of its proper divisors (169336437828).

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

125660810172 is a wasteful number, since it uses less digits than its factorization.

125660810172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97146 (or 97144 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

Adding to 125660810172 its reverse (271018066521), we get a palindrome (396678876693).

The spelling of 125660810172 in words is "one hundred twenty-five billion, six hundred sixty million, eight hundred ten thousand, one hundred seventy-two".