55662803784 has 96 divisors (see below), whose sum is σ = 172509779520. Its totient is φ = 15883337088.

The previous prime is 55662803773. The next prime is 55662803821. The reversal of 55662803784 is 48730826655.

55662803784 is a `hidden beast` number, since 5 + 5 + 6 + 628 + 0 + 3 + 7 + 8 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 55662803784.

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, 326482 + ... + 466814.

It is an arithmetic number, because the mean of its divisors is an integer number (1796976870).

Almost surely, 2^55662803784 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 55662803784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86254889760).

55662803784 is an abundant number, since it is smaller than the sum of its proper divisors (116846975736).

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

55662803784 is a wasteful number, since it uses less digits than its factorization.

55662803784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141139 (or 141132 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 55662803784 in words is "fifty-five billion, six hundred sixty-two million, eight hundred three thousand, seven hundred eighty-four".