55388880718080 has 3456 divisors, whose sum is σ = 241216499220480. Its totient is φ = 10564650270720.

The previous prime is 55388880718079. The next prime is 55388880718103. The reversal of 55388880718080 is 8081708888355.

It is a junction number, because it is equal to n+sod(n) for n = 55388880717996 and 55388880718014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 339809084079 + ... + 339809084241.

Almost surely, 2^{55388880718080} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55388880718080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120608249610240).

55388880718080 is an abundant number, since it is smaller than the sum of its proper divisors (185827618502400).

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

55388880718080 is a wasteful number, since it uses less digits than its factorization.

55388880718080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 137625600, while the sum is 69.

The spelling of 55388880718080 in words is "fifty-five trillion, three hundred eighty-eight billion, eight hundred eighty million, seven hundred eighteen thousand, eighty".