122550297408 has 672 divisors, whose sum is σ = 477300218880. Its totient is φ = 29949419520.

The previous prime is 122550297383. The next prime is 122550297421. The reversal of 122550297408 is 804792055221.

122550297408 is a `hidden beast` number, since 1 + 2 + 2 + 550 + 2 + 97 + 4 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38451591 + ... + 38454777.

Almost surely, 2^122550297408 is an apocalyptic number.

122550297408 is a gapful number since it is divisible by the number (18) 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 122550297408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238650109440).

122550297408 is an abundant number, since it is smaller than the sum of its proper divisors (354749921472).

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

122550297408 is a wasteful number, since it uses less digits than its factorization.

122550297408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 3227 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 122550297408 in words is "one hundred twenty-two billion, five hundred fifty million, two hundred ninety-seven thousand, four hundred eight".