5561550165 has 16 divisors (see below), whose sum is σ = 9115517376. Its totient is φ = 2893814400.

The previous prime is 5561550157. The next prime is 5561550191. The reversal of 5561550165 is 5610551655.

It is not a de Polignac number, because 5561550165 - 2³ = 5561550157 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, 4520971 + ... + 4522200.

It is an arithmetic number, because the mean of its divisors is an integer number (569719836).

Almost surely, 2^5561550165 is an apocalyptic number.

It is an amenable number.

5561550165 is a deficient number, since it is larger than the sum of its proper divisors (3553967211).

5561550165 is a wasteful number, since it uses less digits than its factorization.

5561550165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043220.

The product of its (nonzero) digits is 112500, while the sum is 39.

The square root of 5561550165 is about 74575.8014707184. The cubic root of 5561550165 is about 1771.7344086291.

The spelling of 5561550165 in words is "five billion, five hundred sixty-one million, five hundred fifty thousand, one hundred sixty-five".