122555739930625 has 20 divisors (see below), whose sum is σ = 153480763812244. Its totient is φ = 97830052128000.

The previous prime is 122555739930623. The next prime is 122555739930629. The reversal of 122555739930625 is 526039937555221.

It can be written as a sum of positive squares in 10 ways, for example, as 32798609178049 + 89757130752576 = 5727007^2 + 9474024^2 .

It is not a de Polignac number, because 122555739930625 - 2¹ = 122555739930623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122555739930623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 214253964 + ... + 214825213.

Almost surely, 2^{122555739930625} is an apocalyptic number.

It is an amenable number.

122555739930625 is a deficient number, since it is larger than the sum of its proper divisors (30925023881619).

122555739930625 is an frugal number, since it uses more digits than its factorization.

122555739930625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429079654 (or 429079639 counting only the distinct ones).

The product of its (nonzero) digits is 153090000, while the sum is 64.

The spelling of 122555739930625 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, seven hundred thirty-nine million, nine hundred thirty thousand, six hundred twenty-five".