122978198016 has 240 divisors, whose sum is σ = 381111464448. Its totient is φ = 38036275200.

The previous prime is 122978198009. The next prime is 122978198047. The reversal of 122978198016 is 610891879221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5550801 + ... + 5572911.

Almost surely, 2^122978198016 is an apocalyptic number.

122978198016 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 122978198016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190555732224).

122978198016 is an abundant number, since it is smaller than the sum of its proper divisors (258133266432).

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

122978198016 is a wasteful number, since it uses less digits than its factorization.

122978198016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22223 (or 22204 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 122978198016 in words is "one hundred twenty-two billion, nine hundred seventy-eight million, one hundred ninety-eight thousand, sixteen".