2086366165 has 16 divisors (see below), whose sum is σ = 2698038000. Its totient is φ = 1539666432.

The previous prime is 2086366109. The next prime is 2086366171. The reversal of 2086366165 is 5616636802.

It can be written as a sum of positive squares in 8 ways, for example, as 63345681 + 2023020484 = 7959^2 + 44978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086366165 - 2⁹ = 2086365653 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, 94611 + ... + 114559.

It is an arithmetic number, because the mean of its divisors is an integer number (168627375).

Almost surely, 2^2086366165 is an apocalyptic number.

It is an amenable number.

2086366165 is a deficient number, since it is larger than the sum of its proper divisors (611671835).

2086366165 is a wasteful number, since it uses less digits than its factorization.

2086366165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21576.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 2086366165 is about 45676.7573827215. The cubic root of 2086366165 is about 1277.8018434969.

The spelling of 2086366165 in words is "two billion, eighty-six million, three hundred sixty-six thousand, one hundred sixty-five".