555999244812 has 144 divisors (see below), whose sum is σ = 1615438406400. Its totient is φ = 159465386880.

The previous prime is 555999244741. The next prime is 555999244909. The reversal of 555999244812 is 218442999555.

555999244812 is a `hidden beast` number, since 5 + 5 + 5 + 99 + 92 + 448 + 12 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 555999244812.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8008593 + ... + 8077719.

Almost surely, 2^555999244812 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 555999244812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807719203200).

555999244812 is an abundant number, since it is smaller than the sum of its proper divisors (1059439161588).

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

555999244812 is a wasteful number, since it uses less digits than its factorization.

555999244812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70236 (or 70231 counting only the distinct ones).

The product of its digits is 46656000, while the sum is 63.

The spelling of 555999244812 in words is "five hundred fifty-five billion, nine hundred ninety-nine million, two hundred forty-four thousand, eight hundred twelve".