125520660612 has 48 divisors (see below), whose sum is σ = 325627646400. Its totient is φ = 41814028800.

The previous prime is 125520660599. The next prime is 125520660623. The reversal of 125520660612 is 216066025521.

125520660612 is a `hidden beast` number, since 1 + 25 + 5 + 20 + 6 + 606 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190062 + ... + 535877.

It is an arithmetic number, because the mean of its divisors is an integer number (6783909300).

Almost surely, 2^125520660612 is an apocalyptic number.

125520660612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125520660612 is an abundant number, since it is smaller than the sum of its proper divisors (200106985788).

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

125520660612 is a wasteful number, since it uses less digits than its factorization.

125520660612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727553 (or 727545 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 125520660612 in words is "one hundred twenty-five billion, five hundred twenty million, six hundred sixty thousand, six hundred twelve".