2164619340663 has 16 divisors (see below), whose sum is σ = 3115093816800. Its totient is φ = 1329106673664.

The previous prime is 2164619340649. The next prime is 2164619340683. The reversal of 2164619340663 is 3660439164612.

It is not a de Polignac number, because 2164619340663 - 2⁴ = 2164619340647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164619340613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61789906 + ... + 61824927.

It is an arithmetic number, because the mean of its divisors is an integer number (194693363550).

Almost surely, 2^{2164619340663} is an apocalyptic number.

2164619340663 is a deficient number, since it is larger than the sum of its proper divisors (950474476137).

2164619340663 is a wasteful number, since it uses less digits than its factorization.

2164619340663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123615298.

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 2164619340663 in words is "two trillion, one hundred sixty-four billion, six hundred nineteen million, three hundred forty thousand, six hundred sixty-three".