122663712560 has 80 divisors (see below), whose sum is σ = 289595488512. Its totient is φ = 48308832000.

The previous prime is 122663712553. The next prime is 122663712581. The reversal of 122663712560 is 65217366221.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13668875 + ... + 13677845.

Almost surely, 2^122663712560 is an apocalyptic number.

122663712560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122663712560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144797744256).

122663712560 is an abundant number, since it is smaller than the sum of its proper divisors (166931775952).

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

122663712560 is a wasteful number, since it uses less digits than its factorization.

122663712560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602 (or 11596 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 122663712560 in words is "one hundred twenty-two billion, six hundred sixty-three million, seven hundred twelve thousand, five hundred sixty".