550256316165 has 48 divisors (see below), whose sum is σ = 977396329728. Its totient is φ = 286245376128.

The previous prime is 550256316161. The next prime is 550256316179. The reversal of 550256316165 is 561613652055.

550256316165 is a `hidden beast` number, since 5 + 5 + 0 + 2 + 5 + 631 + 6 + 1 + 6 + 5 = 666.

It is not a de Polignac number, because 550256316165 - 2² = 550256316161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 550256316165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550256316161) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175722 + ... + 1063668.

It is an arithmetic number, because the mean of its divisors is an integer number (20362423536).

Almost surely, 2^550256316165 is an apocalyptic number.

It is an amenable number.

550256316165 is a deficient number, since it is larger than the sum of its proper divisors (427140013563).

550256316165 is a wasteful number, since it uses less digits than its factorization.

550256316165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888298 (or 888295 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 550256316165 in words is "five hundred fifty billion, two hundred fifty-six million, three hundred sixteen thousand, one hundred sixty-five".