2164561013366 has 8 divisors (see below), whose sum is σ = 3249192604224. Its totient is φ = 1081496811960.

The previous prime is 2164561013309. The next prime is 2164561013401. The reversal of 2164561013366 is 6633101654612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391843910 + ... + 391849433.

It is an arithmetic number, because the mean of its divisors is an integer number (406149075528).

Almost surely, 2^{2164561013366} is an apocalyptic number.

2164561013366 is a deficient number, since it is larger than the sum of its proper divisors (1084631590858).

2164561013366 is a wasteful number, since it uses less digits than its factorization.

2164561013366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783694726.

The product of its (nonzero) digits is 466560, while the sum is 44.

Adding to 2164561013366 its reverse (6633101654612), we get a palindrome (8797662667978).

The spelling of 2164561013366 in words is "two trillion, one hundred sixty-four billion, five hundred sixty-one million, thirteen thousand, three hundred sixty-six".