125781371168 has 48 divisors (see below), whose sum is σ = 251704454400. Its totient is φ = 61860556800.

The previous prime is 125781371167. The next prime is 125781371231. The reversal of 125781371168 is 861173187521.

125781371168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (125781371167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915008 + ... + 1043456.

It is an arithmetic number, because the mean of its divisors is an integer number (5243842800).

Almost surely, 2^125781371168 is an apocalyptic number.

It is an amenable number.

125781371168 is an abundant number, since it is smaller than the sum of its proper divisors (125923083232).

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

125781371168 is a wasteful number, since it uses less digits than its factorization.

125781371168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128961 (or 128953 counting only the distinct ones).

The product of its digits is 564480, while the sum is 50.

The spelling of 125781371168 in words is "one hundred twenty-five billion, seven hundred eighty-one million, three hundred seventy-one thousand, one hundred sixty-eight".