125308656277040 has 80 divisors (see below), whose sum is σ = 299363512098240. Its totient is φ = 48744854000640.

The previous prime is 125308656276983. The next prime is 125308656277043. The reversal of 125308656277040 is 40772656803521.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (125308656277043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4345631 + ... + 16416510.

It is an arithmetic number, because the mean of its divisors is an integer number (3742043901228).

Almost surely, 2^{125308656277040} is an apocalyptic number.

125308656277040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125308656277040 is an abundant number, since it is smaller than the sum of its proper divisors (174054855821200).

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

125308656277040 is a wasteful number, since it uses less digits than its factorization.

125308656277040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20764230 (or 20764224 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 56.

The spelling of 125308656277040 in words is "one hundred twenty-five trillion, three hundred eight billion, six hundred fifty-six million, two hundred seventy-seven thousand, forty".