122556637434 has 144 divisors (see below), whose sum is σ = 322155808416. Its totient is φ = 30734524800.

The previous prime is 122556637429. The next prime is 122556637459. The reversal of 122556637434 is 434736655221.

It is a happy number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 2697264 + ... + 2742324.

It is an arithmetic number, because the mean of its divisors is an integer number (2237193114).

Almost surely, 2^122556637434 is an apocalyptic number.

122556637434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122556637434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161077904208).

122556637434 is an abundant number, since it is smaller than the sum of its proper divisors (199599170982).

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

122556637434 is a wasteful number, since it uses less digits than its factorization.

122556637434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45149 (or 45113 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 122556637434 in words is "one hundred twenty-two billion, five hundred fifty-six million, six hundred thirty-seven thousand, four hundred thirty-four".