55183335480 has 640 divisors, whose sum is σ = 231237115200. Its totient is φ = 11635964928.

The previous prime is 55183335479. The next prime is 55183335499. The reversal of 55183335480 is 8453338155.

55183335480 is a `hidden beast` number, since 5 + 518 + 3 + 3 + 3 + 54 + 80 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 33709222 + ... + 33710858.

Almost surely, 2^55183335480 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 55183335480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115618557600).

55183335480 is an abundant number, since it is smaller than the sum of its proper divisors (176053779720).

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

55183335480 is a wasteful number, since it uses less digits than its factorization.

55183335480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 55183335480 in words is "fifty-five billion, one hundred eighty-three million, three hundred thirty-five thousand, four hundred eighty".