125161878608 has 30 divisors (see below), whose sum is σ = 262589997294. Its totient is φ = 57767019648.

The previous prime is 125161878601. The next prime is 125161878623. The reversal of 125161878608 is 806878161521.

It can be written as a sum of positive squares in 3 ways, for example, as 5371130944 + 119790747664 = 73288^2 + 346108^2 .

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 125161878608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125161878601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23141135 + ... + 23146542.

Almost surely, 2^125161878608 is an apocalyptic number.

It is an amenable number.

125161878608 is an abundant number, since it is smaller than the sum of its proper divisors (137428118686).

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

125161878608 is a wasteful number, since it uses less digits than its factorization.

125161878608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46287711 (or 46287692 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 125161878608 in words is "one hundred twenty-five billion, one hundred sixty-one million, eight hundred seventy-eight thousand, six hundred eight".