125344156578 has 16 divisors (see below), whose sum is σ = 251479131840. Its totient is φ = 41649582416.

The previous prime is 125344156529. The next prime is 125344156583. The reversal of 125344156578 is 875651443521.

125344156578 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×125344156578² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 125344156578.

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 7 ways as a sum of consecutive naturals, for example, 32948718 + ... + 32952521.

It is an arithmetic number, because the mean of its divisors is an integer number (15717445740).

Almost surely, 2^125344156578 is an apocalyptic number.

125344156578 is an abundant number, since it is smaller than the sum of its proper divisors (126134975262).

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

125344156578 is a wasteful number, since it uses less digits than its factorization.

125344156578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65901561.

The product of its digits is 4032000, while the sum is 51.

The spelling of 125344156578 in words is "one hundred twenty-five billion, three hundred forty-four million, one hundred fifty-six thousand, five hundred seventy-eight".