55443108075264 has 1620 divisors, whose sum is σ = 211144150291536. Its totient is φ = 14418791202816.

The previous prime is 55443108075259. The next prime is 55443108075343. The reversal of 55443108075264 is 46257080134455.

55443108075264 is a `hidden beast` number, since 5 + 5 + 4 + 4 + 3 + 108 + 0 + 7 + 526 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 55443108075264.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 12535179357 + ... + 12535183779.

Almost surely, 2^{55443108075264} is an apocalyptic number.

55443108075264 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55443108075264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105572075145768).

55443108075264 is an abundant number, since it is smaller than the sum of its proper divisors (155701042216272).

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

55443108075264 is a wasteful number, since it uses less digits than its factorization.

55443108075264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 4521 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 55443108075264 in words is "fifty-five trillion, four hundred forty-three billion, one hundred eight million, seventy-five thousand, two hundred sixty-four".