551964445858 has 16 divisors (see below), whose sum is σ = 946237362624. Its totient is φ = 236553041520.

The previous prime is 551964445817. The next prime is 551964445867. The reversal of 551964445858 is 858544469155.

It is a self number, because there is not a number n which added to its sum of digits gives 551964445858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054441 + ... + 1488547.

It is an arithmetic number, because the mean of its divisors is an integer number (59139835164).

Almost surely, 2^551964445858 is an apocalyptic number.

551964445858 is a deficient number, since it is larger than the sum of its proper divisors (394272916766).

551964445858 is a wasteful number, since it uses less digits than its factorization.

551964445858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524937.

The product of its digits is 138240000, while the sum is 64.

It can be divided in two parts, 55196 and 4445858, that added together give a palindrome (4501054).

The spelling of 551964445858 in words is "five hundred fifty-one billion, nine hundred sixty-four million, four hundred forty-five thousand, eight hundred fifty-eight".