125087666575 has 18 divisors (see below), whose sum is σ = 155353584264. Its totient is φ = 99912395520.

The previous prime is 125087666533. The next prime is 125087666603. The reversal of 125087666575 is 575666780521.

It is a de Polignac number, because none of the positive numbers 2^k-125087666575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11317702 + ... + 11328748.

Almost surely, 2^125087666575 is an apocalyptic number.

125087666575 is a deficient number, since it is larger than the sum of its proper divisors (30265917689).

125087666575 is an frugal number, since it uses more digits than its factorization.

125087666575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403 (or 11725 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 125087666575 in words is "one hundred twenty-five billion, eighty-seven million, six hundred sixty-six thousand, five hundred seventy-five".