2164432064 has 56 divisors (see below), whose sum is σ = 4343582880. Its totient is φ = 1070065664.

The previous prime is 2164432019. The next prime is 2164432069. The reversal of 2164432064 is 4602344612.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2164432064.

It is not an unprimeable number, because it can be changed into a prime (2164432069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579357 + ... + 2580195.

It is an arithmetic number, because the mean of its divisors is an integer number (77563980).

Almost surely, 2^2164432064 is an apocalyptic number.

It is an amenable number.

2164432064 is an abundant number, since it is smaller than the sum of its proper divisors (2179150816).

2164432064 is a wasteful number, since it uses less digits than its factorization.

2164432064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2164432064 is about 46523.4571372335. The cubic root of 2164432064 is about 1293.5443389270.

Adding to 2164432064 its reverse (4602344612), we get a palindrome (6766776676).

The spelling of 2164432064 in words is "two billion, one hundred sixty-four million, four hundred thirty-two thousand, sixty-four".