2116405365 has 32 divisors (see below), whose sum is σ = 3492420096. Its totient is φ = 1093616640.

The previous prime is 2116405351. The next prime is 2116405427. The reversal of 2116405365 is 5635046112.

It is not a de Polignac number, because 2116405365 - 2⁴ = 2116405349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125844 + ... + 141666.

It is an arithmetic number, because the mean of its divisors is an integer number (109138128).

Almost surely, 2^2116405365 is an apocalyptic number.

It is an amenable number.

2116405365 is a deficient number, since it is larger than the sum of its proper divisors (1376014731).

2116405365 is a wasteful number, since it uses less digits than its factorization.

2116405365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16109.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2116405365 is about 46004.4059303019. The cubic root of 2116405365 is about 1283.9051806175.

The spelling of 2116405365 in words is "two billion, one hundred sixteen million, four hundred five thousand, three hundred sixty-five".