55818381360 has 240 divisors, whose sum is σ = 201492791136. Its totient is φ = 12745506816.

The previous prime is 55818381343. The next prime is 55818381373. The reversal of 55818381360 is 6318381855.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (48).

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 47 ways as a sum of consecutive naturals, for example, 16144752 + ... + 16148208.

Almost surely, 2^55818381360 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 55818381360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100746395568).

55818381360 is an abundant number, since it is smaller than the sum of its proper divisors (145674409776).

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

55818381360 is a wasteful number, since it uses less digits than its factorization.

55818381360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4860 (or 4847 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 55818381360 in words is "fifty-five billion, eight hundred eighteen million, three hundred eighty-one thousand, three hundred sixty".