122991153296 has 80 divisors (see below), whose sum is σ = 261434124288. Its totient is φ = 55588406400.

The previous prime is 122991153283. The next prime is 122991153323. The reversal of 122991153296 is 692351199221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44065661 + ... + 44068451.

Almost surely, 2^122991153296 is an apocalyptic number.

122991153296 is a gapful number since it is divisible by the number (16) 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 122991153296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130717062144).

122991153296 is an abundant number, since it is smaller than the sum of its proper divisors (138442970992).

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

122991153296 is a wasteful number, since it uses less digits than its factorization.

122991153296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140 (or 4134 counting only the distinct ones).

The product of its digits is 524880, while the sum is 50.

The spelling of 122991153296 in words is "one hundred twenty-two billion, nine hundred ninety-one million, one hundred fifty-three thousand, two hundred ninety-six".