55899856896 has 336 divisors, whose sum is σ = 165686390496. Its totient is φ = 16746283008.

The previous prime is 55899856867. The next prime is 55899856937. The reversal of 55899856896 is 69865899855.

It is a Harshad number since it is a multiple of its sum of digits (78).

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, 178593636 + ... + 178593948.

Almost surely, 2^55899856896 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 55899856896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82843195248).

55899856896 is an abundant number, since it is smaller than the sum of its proper divisors (109786533600).

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

55899856896 is a wasteful number, since it uses less digits than its factorization.

55899856896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 374 counting only the distinct ones).

The product of its digits is 1679616000, while the sum is 78.

The spelling of 55899856896 in words is "fifty-five billion, eight hundred ninety-nine million, eight hundred fifty-six thousand, eight hundred ninety-six".