2195633966 has 16 divisors (see below), whose sum is σ = 3304183968. Its totient is φ = 1094246400.

The previous prime is 2195633911. The next prime is 2195633971. The reversal of 2195633966 is 6693365912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054046 + ... + 1056126.

It is an arithmetic number, because the mean of its divisors is an integer number (206511498).

Almost surely, 2^2195633966 is an apocalyptic number.

2195633966 is a deficient number, since it is larger than the sum of its proper divisors (1108550002).

2195633966 is a wasteful number, since it uses less digits than its factorization.

2195633966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547.

The product of its digits is 1574640, while the sum is 50.

The square root of 2195633966 is about 46857.5924050735. The cubic root of 2195633966 is about 1299.7305094243.

The spelling of 2195633966 in words is "two billion, one hundred ninety-five million, six hundred thirty-three thousand, nine hundred sixty-six".