551320875165 has 16 divisors (see below), whose sum is σ = 882917540928. Its totient is φ = 293769753216.

The previous prime is 551320875151. The next prime is 551320875197. The reversal of 551320875165 is 561578023155.

It is not a de Polignac number, because 551320875165 - 2¹⁸ = 551320613021 is a prime.

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, 16735927 + ... + 16768836.

It is an arithmetic number, because the mean of its divisors is an integer number (55182346308).

Almost surely, 2^551320875165 is an apocalyptic number.

It is an amenable number.

551320875165 is a deficient number, since it is larger than the sum of its proper divisors (331596665763).

551320875165 is a wasteful number, since it uses less digits than its factorization.

551320875165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33505868.

The product of its (nonzero) digits is 1260000, while the sum is 48.

The spelling of 551320875165 in words is "five hundred fifty-one billion, three hundred twenty million, eight hundred seventy-five thousand, one hundred sixty-five".