2164295643 has 32 divisors (see below), whose sum is σ = 3102105600. Its totient is φ = 1338098976.

The previous prime is 2164295641. The next prime is 2164295657. The reversal of 2164295643 is 3465924612.

It is not a de Polignac number, because 2164295643 - 2¹ = 2164295641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164295595 and 2164295604.

It is not an unprimeable number, because it can be changed into a prime (2164295641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 883246 + ... + 885692.

It is an arithmetic number, because the mean of its divisors is an integer number (96940800).

Almost surely, 2^2164295643 is an apocalyptic number.

2164295643 is a deficient number, since it is larger than the sum of its proper divisors (937809957).

2164295643 is a wasteful number, since it uses less digits than its factorization.

2164295643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791.

The product of its digits is 311040, while the sum is 42.

The square root of 2164295643 is about 46521.9909612648. The cubic root of 2164295643 is about 1293.5171616175.

The spelling of 2164295643 in words is "two billion, one hundred sixty-four million, two hundred ninety-five thousand, six hundred forty-three".