2133643266 has 24 divisors (see below), whose sum is σ = 4866204720. Its totient is φ = 673781976.

The previous prime is 2133643229. The next prime is 2133643271. The reversal of 2133643266 is 6623463312.

2133643266 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 643 + 2 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2133643266.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3119020 + ... + 3119703.

It is an arithmetic number, because the mean of its divisors is an integer number (202758530).

Almost surely, 2^2133643266 is an apocalyptic number.

2133643266 is an abundant number, since it is smaller than the sum of its proper divisors (2732561454).

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

2133643266 is a wasteful number, since it uses less digits than its factorization.

2133643266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6238750 (or 6238747 counting only the distinct ones).

The product of its digits is 93312, while the sum is 36.

The square root of 2133643266 is about 46191.3765328551. The cubic root of 2133643266 is about 1287.3815174345.

The spelling of 2133643266 in words is "two billion, one hundred thirty-three million, six hundred forty-three thousand, two hundred sixty-six".