2116645230263 has 4 divisors (see below), whose sum is σ = 2116666306128. Its totient is φ = 2116624154400.

The previous prime is 2116645230257. The next prime is 2116645230277. The reversal of 2116645230263 is 3620325466112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2116645230263 - 2¹⁶ = 2116645164727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2116645230263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116645250263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10386563 + ... + 10588388.

It is an arithmetic number, because the mean of its divisors is an integer number (529166576532).

Almost surely, 2^{2116645230263} is an apocalyptic number.

2116645230263 is a deficient number, since it is larger than the sum of its proper divisors (21075865).

2116645230263 is a wasteful number, since it uses less digits than its factorization.

2116645230263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075864.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 2116645230263 in words is "two trillion, one hundred sixteen billion, six hundred forty-five million, two hundred thirty thousand, two hundred sixty-three".