5500550918400 has 864 divisors, whose sum is σ = 19838183608320. Its totient is φ = 1338494976000.

The previous prime is 5500550918389. The next prime is 5500550918417. The reversal of 5500550918400 is 48190550055.

It is a happy number.

It is a super-2 number, since 2×5500550918400² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 742210695 + ... + 742218105.

Almost surely, 2^{5500550918400} is an apocalyptic number.

5500550918400 is a gapful number since it is divisible by the number (50) 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 5500550918400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9919091804160).

5500550918400 is an abundant number, since it is smaller than the sum of its proper divisors (14337632689920).

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

5500550918400 is a wasteful number, since it uses less digits than its factorization.

5500550918400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 5500550918400 in words is "five trillion, five hundred billion, five hundred fifty million, nine hundred eighteen thousand, four hundred".