125015220755720 has 64 divisors (see below), whose sum is σ = 281814746117040. Its totient is φ = 49911784243200.

The previous prime is 125015220755717. The next prime is 125015220755729. The reversal of 125015220755720 is 27557022510521.

It can be written as a sum of positive squares in 8 ways, for example, as 2518448389444 + 122496772366276 = 1586962^2 + 11067826^2 .

It is not an unprimeable number, because it can be changed into a prime (125015220755729) 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, 674058200 + ... + 674243640.

Almost surely, 2^{125015220755720} is an apocalyptic number.

125015220755720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125015220755720 is an abundant number, since it is smaller than the sum of its proper divisors (156799525361320).

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

125015220755720 is a wasteful number, since it uses less digits than its factorization.

125015220755720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217146 (or 217142 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The spelling of 125015220755720 in words is "one hundred twenty-five trillion, fifteen billion, two hundred twenty million, seven hundred fifty-five thousand, seven hundred twenty".