122556661315 has 16 divisors (see below), whose sum is σ = 160745790816. Its totient is φ = 88961017600.

The previous prime is 122556661309. The next prime is 122556661319. The reversal of 122556661315 is 513166655221.

It is a happy number.

It is not a de Polignac number, because 122556661315 - 2⁹ = 122556660803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122556661319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109832 + ... + 2167141.

It is an arithmetic number, because the mean of its divisors is an integer number (10046611926).

Almost surely, 2^122556661315 is an apocalyptic number.

122556661315 is a deficient number, since it is larger than the sum of its proper divisors (38189129501).

122556661315 is a wasteful number, since it uses less digits than its factorization.

122556661315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277510.

The product of its digits is 324000, while the sum is 43.

The spelling of 122556661315 in words is "one hundred twenty-two billion, five hundred fifty-six million, six hundred sixty-one thousand, three hundred fifteen".