2219927966 has 32 divisors (see below), whose sum is σ = 3758400000. Its totient is φ = 977139072.

The previous prime is 2219927953. The next prime is 2219927977. The reversal of 2219927966 is 6697299122.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29285 + ... + 72783.

It is an arithmetic number, because the mean of its divisors is an integer number (117450000).

Almost surely, 2^2219927966 is an apocalyptic number.

2219927966 is a deficient number, since it is larger than the sum of its proper divisors (1538472034).

2219927966 is a wasteful number, since it uses less digits than its factorization.

2219927966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43616.

The product of its digits is 1469664, while the sum is 53.

The square root of 2219927966 is about 47116.1115331051. Note that the first 3 decimals coincide. The cubic root of 2219927966 is about 1304.5066402811.

The spelling of 2219927966 in words is "two billion, two hundred nineteen million, nine hundred twenty-seven thousand, nine hundred sixty-six".