551166565598 has 32 divisors (see below), whose sum is σ = 918597411072. Its totient is φ = 245927102400.

The previous prime is 551166565549. The next prime is 551166565613. The reversal of 551166565598 is 895565661155.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 551166565598.

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 15 ways as a sum of consecutive naturals, for example, 474386 + ... + 1152117.

It is an arithmetic number, because the mean of its divisors is an integer number (28706169096).

Almost surely, 2^551166565598 is an apocalyptic number.

551166565598 is a deficient number, since it is larger than the sum of its proper divisors (367430845474).

551166565598 is a wasteful number, since it uses less digits than its factorization.

551166565598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626800.

The product of its digits is 48600000, while the sum is 62.

The spelling of 551166565598 in words is "five hundred fifty-one billion, one hundred sixty-six million, five hundred sixty-five thousand, five hundred ninety-eight".