122976065856 has 112 divisors (see below), whose sum is σ = 388023957504. Its totient is φ = 33608357376.

The previous prime is 122976065759. The next prime is 122976065857. The reversal of 122976065856 is 658560679221.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-4 number, since 4×122976065856⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 122976065796 and 122976065805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122976065857) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1958220 + ... + 2020043.

Almost surely, 2^122976065856 is an apocalyptic number.

122976065856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122976065856 is an abundant number, since it is smaller than the sum of its proper divisors (265047891648).

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

122976065856 is a wasteful number, since it uses less digits than its factorization.

122976065856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3978308 (or 3978298 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 122976065856 in words is "one hundred twenty-two billion, nine hundred seventy-six million, sixty-five thousand, eight hundred fifty-six".