125530820694 has 48 divisors (see below), whose sum is σ = 279653381280. Its totient is φ = 40671208320.

The previous prime is 125530820677. The next prime is 125530820699. The reversal of 125530820694 is 496028035521.

125530820694 is a `hidden beast` number, since 1 + 2 + 5 + 530 + 8 + 20 + 6 + 94 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125530820699) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 117642 + ... + 514685.

It is an arithmetic number, because the mean of its divisors is an integer number (5826112110).

Almost surely, 2^125530820694 is an apocalyptic number.

125530820694 is an abundant number, since it is smaller than the sum of its proper divisors (154122560586).

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

125530820694 is a wasteful number, since it uses less digits than its factorization.

125530820694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632645 (or 632642 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 125530820694 in words is "one hundred twenty-five billion, five hundred thirty million, eight hundred twenty thousand, six hundred ninety-four".