125117656672173 has 8 divisors (see below), whose sum is σ = 181989318795936. Its totient is φ = 75828882831600.

The previous prime is 125117656672157. The next prime is 125117656672273. The reversal of 125117656672173 is 371276656711521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125117656672173 - 2⁴ = 125117656672157 is a prime.

It is a super-2 number, since 2×125117656672173² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125117656672273) 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, 1895722070758 + ... + 1895722070823.

It is an arithmetic number, because the mean of its divisors is an integer number (22748664849492).

Almost surely, 2^{125117656672173} is an apocalyptic number.

It is an amenable number.

125117656672173 is a deficient number, since it is larger than the sum of its proper divisors (56871662123763).

125117656672173 is a wasteful number, since it uses less digits than its factorization.

125117656672173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791444141595.

The product of its digits is 22226400, while the sum is 60.

The spelling of 125117656672173 in words is "one hundred twenty-five trillion, one hundred seventeen billion, six hundred fifty-six million, six hundred seventy-two thousand, one hundred seventy-three".