2116645230065 has 64 divisors (see below), whose sum is σ = 2772859392000. Its totient is φ = 1544951095296.

The previous prime is 2116645230041. The next prime is 2116645230103. The reversal of 2116645230065 is 5600325466112.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116645230065 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218453741 + ... + 218463429.

It is an arithmetic number, because the mean of its divisors is an integer number (43325928000).

Almost surely, 2^{2116645230065} is an apocalyptic number.

It is an amenable number.

2116645230065 is a deficient number, since it is larger than the sum of its proper divisors (656214161935).

2116645230065 is a wasteful number, since it uses less digits than its factorization.

2116645230065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10274.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 2116645230065 in words is "two trillion, one hundred sixteen billion, six hundred forty-five million, two hundred thirty thousand, sixty-five".