122553561136 has 40 divisors (see below), whose sum is σ = 251689114080. Its totient is φ = 57609391104.

The previous prime is 122553561089. The next prime is 122553561139. The reversal of 122553561136 is 631165355221.

It is a happy number.

It is a super-2 number, since 2×122553561136² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122553561139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830 + ... + 495106.

It is an arithmetic number, because the mean of its divisors is an integer number (6292227852).

Almost surely, 2^122553561136 is an apocalyptic number.

122553561136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122553561136 is an abundant number, since it is smaller than the sum of its proper divisors (129135552944).

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

122553561136 is a wasteful number, since it uses less digits than its factorization.

122553561136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491221 (or 491215 counting only the distinct ones).

The product of its digits is 162000, while the sum is 40.

The spelling of 122553561136 in words is "one hundred twenty-two billion, five hundred fifty-three million, five hundred sixty-one thousand, one hundred thirty-six".