55241216816 has 120 divisors (see below), whose sum is σ = 117194574960. Its totient is φ = 25153390080.

The previous prime is 55241216801. The next prime is 55241216827. The reversal of 55241216816 is 61861214255.

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, 50540366 + ... + 50541458.

It is an arithmetic number, because the mean of its divisors is an integer number (976621458).

Almost surely, 2^55241216816 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 55241216816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58597287480).

55241216816 is an abundant number, since it is smaller than the sum of its proper divisors (61953358144).

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

55241216816 is a wasteful number, since it uses less digits than its factorization.

55241216816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1318 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The spelling of 55241216816 in words is "fifty-five billion, two hundred forty-one million, two hundred sixteen thousand, eight hundred sixteen".