125655744120 has 128 divisors (see below), whose sum is σ = 400402958400. Its totient is φ = 31437479936.

The previous prime is 125655744061. The next prime is 125655744139. The reversal of 125655744120 is 21447556521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549526 + ... + 743834.

Almost surely, 2^125655744120 is an apocalyptic number.

125655744120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125655744120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200201479200).

125655744120 is an abundant number, since it is smaller than the sum of its proper divisors (274747214280).

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

125655744120 is a wasteful number, since it uses less digits than its factorization.

125655744120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194657 (or 194653 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 125655744120 in words is "one hundred twenty-five billion, six hundred fifty-five million, seven hundred forty-four thousand, one hundred twenty".