125013081366 has 24 divisors (see below), whose sum is σ = 277160786760. Its totient is φ = 40701933216.

The previous prime is 125013081353. The next prime is 125013081443. The reversal of 125013081366 is 663180310521.

125013081366 is a `hidden beast` number, since 12 + 501 + 3 + 0 + 8 + 136 + 6 = 666.

125013081366 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 125013081366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80757031 + ... + 80758578.

It is an arithmetic number, because the mean of its divisors is an integer number (11548366115).

Almost surely, 2^125013081366 is an apocalyptic number.

125013081366 is an abundant number, since it is smaller than the sum of its proper divisors (152147705394).

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

125013081366 is a wasteful number, since it uses less digits than its factorization.

125013081366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161515660 (or 161515657 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 125013081366 its reverse (663180310521), we get a palindrome (788193391887).

The spelling of 125013081366 in words is "one hundred twenty-five billion, thirteen million, eighty-one thousand, three hundred sixty-six".