2164626610253 has 4 divisors (see below), whose sum is σ = 2164629717660. Its totient is φ = 2164623502848.

The previous prime is 2164626610247. The next prime is 2164626610259. The reversal of 2164626610253 is 3520166264612.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2164626610247) and next prime (2164626610259).

It can be written as a sum of positive squares in 2 ways, for example, as 1409816645449 + 754809964804 = 1187357^2 + 868798^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164626610253 - 2²⁶ = 2164559501389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164626610259) 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, 27803 + ... + 2080871.

It is an arithmetic number, because the mean of its divisors is an integer number (541157429415).

Almost surely, 2^{2164626610253} is an apocalyptic number.

It is an amenable number.

2164626610253 is a deficient number, since it is larger than the sum of its proper divisors (3107407).

2164626610253 is a wasteful number, since it uses less digits than its factorization.

2164626610253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107406.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 2164626610253 in words is "two trillion, one hundred sixty-four billion, six hundred twenty-six million, six hundred ten thousand, two hundred fifty-three".