122017665764 has 18 divisors (see below), whose sum is σ = 221147957394. Its totient is φ = 58905078400.

The previous prime is 122017665751. The next prime is 122017665779. The reversal of 122017665764 is 467566710221.

It can be written as a sum of positive squares in 3 ways, for example, as 4018545664 + 117999120100 = 63392^2 + 343510^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18132437 + ... + 18139164.

It is an arithmetic number, because the mean of its divisors is an integer number (12285997633).

Almost surely, 2^122017665764 is an apocalyptic number.

It is an amenable number.

122017665764 is a deficient number, since it is larger than the sum of its proper divisors (99130291630).

122017665764 is a wasteful number, since it uses less digits than its factorization.

122017665764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36271663 (or 36271632 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 122017665764 in words is "one hundred twenty-two billion, seventeen million, six hundred sixty-five thousand, seven hundred sixty-four".