125436660869568 has 112 divisors (see below), whose sum is σ = 336454524610560. Its totient is φ = 41237631052800.

The previous prime is 125436660869567. The next prime is 125436660869599. The reversal of 125436660869568 is 865968066634521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125436660869568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125436660869567) 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, 9279178 + ... + 18356918.

Almost surely, 2^{125436660869568} 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 125436660869568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168227262305280).

125436660869568 is an abundant number, since it is smaller than the sum of its proper divisors (211017863740992).

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

125436660869568 is an equidigital number, since it uses as much as digits as its factorization.

125436660869568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078746 (or 9078736 counting only the distinct ones).

The product of its (nonzero) digits is 2687385600, while the sum is 75.

The spelling of 125436660869568 in words is "one hundred twenty-five trillion, four hundred thirty-six billion, six hundred sixty million, eight hundred sixty-nine thousand, five hundred sixty-eight".