125655712980 has 192 divisors, whose sum is σ = 419649431040. Its totient is φ = 27485208576.

The previous prime is 125655712979. The next prime is 125655713011. The reversal of 125655712980 is 89217556521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1330692 + ... + 1421988.

It is an arithmetic number, because the mean of its divisors is an integer number (2185674120).

Almost surely, 2^125655712980 is an apocalyptic number.

125655712980 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 125655712980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209824715520).

125655712980 is an abundant number, since it is smaller than the sum of its proper divisors (293993718060).

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

125655712980 is a wasteful number, since it uses less digits than its factorization.

125655712980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91458 (or 91456 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 125655712980 in words is "one hundred twenty-five billion, six hundred fifty-five million, seven hundred twelve thousand, nine hundred eighty".