125661375265700 has 72 divisors (see below), whose sum is σ = 272887148771328. Its totient is φ = 50227330187520.

The previous prime is 125661375265607. The next prime is 125661375265711. The reversal of 125661375265700 is 7562573166521.

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 23 ways as a sum of consecutive naturals, for example, 1289275169 + ... + 1289372631.

Almost surely, 2^{125661375265700} is an apocalyptic number.

125661375265700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125661375265700 is an abundant number, since it is smaller than the sum of its proper divisors (147225773505628).

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

125661375265700 is a wasteful number, since it uses less digits than its factorization.

125661375265700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106893 (or 106886 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 125661375265700 in words is "one hundred twenty-five trillion, six hundred sixty-one billion, three hundred seventy-five million, two hundred sixty-five thousand, seven hundred".