2165086706 has 32 divisors (see below), whose sum is σ = 3347688960. Its totient is φ = 1049825664.

The previous prime is 2165086699. The next prime is 2165086723. The reversal of 2165086706 is 6076805612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4519775 + ... + 4520253.

It is an arithmetic number, because the mean of its divisors is an integer number (104615280).

Almost surely, 2^2165086706 is an apocalyptic number.

2165086706 is a deficient number, since it is larger than the sum of its proper divisors (1182602254).

2165086706 is a wasteful number, since it uses less digits than its factorization.

2165086706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 2165086706 is about 46530.4922174696. The cubic root of 2165086706 is about 1293.6747385066.

The spelling of 2165086706 in words is "two billion, one hundred sixty-five million, eighty-six thousand, seven hundred six".