2164645210 has 128 divisors (see below), whose sum is σ = 4907589120. Its totient is φ = 669302784.

The previous prime is 2164645201. The next prime is 2164645247. The reversal of 2164645210 is 125464612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12092901 + ... + 12093079.

It is an arithmetic number, because the mean of its divisors is an integer number (38340540).

Almost surely, 2^2164645210 is an apocalyptic number.

2164645210 is an abundant number, since it is smaller than the sum of its proper divisors (2742943910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2164645210 is a wasteful number, since it uses less digits than its factorization.

2164645210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 2164645210 is about 46525.7478177407. The cubic root of 2164645210 is about 1293.5867988339.

The spelling of 2164645210 in words is "two billion, one hundred sixty-four million, six hundred forty-five thousand, two hundred ten".