2164365553 has 4 divisors (see below), whose sum is σ = 2473560640. Its totient is φ = 1855170468.

The previous prime is 2164365551. The next prime is 2164365571. The reversal of 2164365553 is 3555634612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2164365553 - 2¹ = 2164365551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2164365551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154597533 + ... + 154597546.

It is an arithmetic number, because the mean of its divisors is an integer number (618390160).

Almost surely, 2^2164365553 is an apocalyptic number.

It is an amenable number.

2164365553 is a deficient number, since it is larger than the sum of its proper divisors (309195087).

2164365553 is an equidigital number, since it uses as much as digits as its factorization.

2164365553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309195086.

The product of its digits is 324000, while the sum is 40.

The square root of 2164365553 is about 46522.7423202889. The cubic root of 2164365553 is about 1293.5310889833.

The spelling of 2164365553 in words is "two billion, one hundred sixty-four million, three hundred sixty-five thousand, five hundred fifty-three".