551043045165 has 16 divisors (see below), whose sum is σ = 928072497600. Its totient is φ = 278421748992.

The previous prime is 551043045149. The next prime is 551043045173. The reversal of 551043045165 is 561540340155.

It is not a de Polignac number, because 551043045165 - 2⁴ = 551043045149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966741900 + ... + 966742469.

It is an arithmetic number, because the mean of its divisors is an integer number (58004531100).

Almost surely, 2^551043045165 is an apocalyptic number.

It is an amenable number.

551043045165 is a deficient number, since it is larger than the sum of its proper divisors (377029452435).

551043045165 is a wasteful number, since it uses less digits than its factorization.

551043045165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933484396.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 551043045165 in words is "five hundred fifty-one billion, forty-three million, forty-five thousand, one hundred sixty-five".