108439955456 has 288 divisors, whose sum is σ = 263773036800. Its totient is φ = 43648450560.

The previous prime is 108439955443. The next prime is 108439955489. The reversal of 108439955456 is 654559934801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 108439955395 and 108439955404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599115686 + ... + 599115866.

It is an arithmetic number, because the mean of its divisors is an integer number (915878600).

Almost surely, 2^108439955456 is an apocalyptic number.

108439955456 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 108439955456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131886518400).

108439955456 is an abundant number, since it is smaller than the sum of its proper divisors (155333081344).

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

108439955456 is an equidigital number, since it uses as much as digits as its factorization.

108439955456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 108439955456 in words is "one hundred eight billion, four hundred thirty-nine million, nine hundred fifty-five thousand, four hundred fifty-six".