125996396544 has 312 divisors, whose sum is σ = 373048282880. Its totient is φ = 40962392064.

The previous prime is 125996396527. The next prime is 125996396557. The reversal of 125996396544 is 445693699521.

125996396544 is a `hidden beast` number, since 1 + 2 + 59 + 9 + 6 + 39 + 6 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343314249 + ... + 343314615.

Almost surely, 2^125996396544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125996396544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186524141440).

125996396544 is an abundant number, since it is smaller than the sum of its proper divisors (247051886336).

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

125996396544 is a wasteful number, since it uses less digits than its factorization.

125996396544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 578 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 63.

The spelling of 125996396544 in words is "one hundred twenty-five billion, nine hundred ninety-six million, three hundred ninety-six thousand, five hundred forty-four".