115555522400 has 108 divisors (see below), whose sum is σ = 297729467532. Its totient is φ = 43789351680.

The previous prime is 115555522391. The next prime is 115555522409. The reversal of 115555522400 is 4225555511.

It is an interprime number because it is at equal distance from previous prime (115555522391) and next prime (115555522409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115555522409) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 88739 + ... + 488861.

It is an arithmetic number, because the mean of its divisors is an integer number (2756754329).

Almost surely, 2^115555522400 is an apocalyptic number.

115555522400 is a gapful number since it is divisible by the number (10) 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 115555522400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148864733766).

115555522400 is an abundant number, since it is smaller than the sum of its proper divisors (182173945132).

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

115555522400 is a wasteful number, since it uses less digits than its factorization.

115555522400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400181 (or 400149 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 35.

The spelling of 115555522400 in words is "one hundred fifteen billion, five hundred fifty-five million, five hundred twenty-two thousand, four hundred".