55870326720 has 1008 divisors, whose sum is σ = 226764982080. Its totient is φ = 13006946304.

The previous prime is 55870326713. The next prime is 55870326731. The reversal of 55870326720 is 2762307855.

55870326720 is a `hidden beast` number, since 5 + 587 + 0 + 3 + 2 + 67 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 627756436 + ... + 627756524.

It is an arithmetic number, because the mean of its divisors is an integer number (224965260).

Almost surely, 2^55870326720 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 55870326720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113382491040).

55870326720 is an abundant number, since it is smaller than the sum of its proper divisors (170894655360).

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

55870326720 is an equidigital number, since it uses as much as digits as its factorization.

55870326720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 55870326720 in words is "fifty-five billion, eight hundred seventy million, three hundred twenty-six thousand, seven hundred twenty".