2164045305 has 32 divisors (see below), whose sum is σ = 3585770496. Its totient is φ = 1113706944.

The previous prime is 2164045283. The next prime is 2164045309. The reversal of 2164045305 is 5035404612.

It is not a de Polignac number, because 2164045305 - 2¹⁵ = 2164012537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164045309) 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, 33324 + ... + 73746.

It is an arithmetic number, because the mean of its divisors is an integer number (112055328).

Almost surely, 2^2164045305 is an apocalyptic number.

It is an amenable number.

2164045305 is a deficient number, since it is larger than the sum of its proper divisors (1421725191).

2164045305 is a wasteful number, since it uses less digits than its factorization.

2164045305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40557.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2164045305 is about 46519.3003494249. The cubic root of 2164045305 is about 1293.4672871952.

Adding to 2164045305 its reverse (5035404612), we get a palindrome (7199449917).

The spelling of 2164045305 in words is "two billion, one hundred sixty-four million, forty-five thousand, three hundred five".