122765665700 has 18 divisors (see below), whose sum is σ = 266401494786. Its totient is φ = 49106266240.

The previous prime is 122765665679. The next prime is 122765665703. The reversal of 122765665700 is 7566567221.

It can be written as a sum of positive squares in 3 ways, for example, as 12792514816 + 109973150884 = 113104^2 + 331622^2 .

It is not an unprimeable number, because it can be changed into a prime (122765665703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 613828229 + ... + 613828428.

Almost surely, 2^122765665700 is an apocalyptic number.

122765665700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122765665700 is an abundant number, since it is smaller than the sum of its proper divisors (143635829086).

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

122765665700 is a wasteful number, since it uses less digits than its factorization.

122765665700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227656671 (or 1227656664 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 122765665700 in words is "one hundred twenty-two billion, seven hundred sixty-five million, six hundred sixty-five thousand, seven hundred".