2133643265 has 16 divisors (see below), whose sum is σ = 2759375808. Its totient is φ = 1574440896.

The previous prime is 2133643229. The next prime is 2133643271. The reversal of 2133643265 is 5623463312.

It is a cyclic number.

It is not a de Polignac number, because 2133643265 - 2¹² = 2133639169 is a prime.

It is a Duffinian 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, 81254 + ... + 104256.

It is an arithmetic number, because the mean of its divisors is an integer number (172460988).

Almost surely, 2^2133643265 is an apocalyptic number.

It is an amenable number.

2133643265 is a deficient number, since it is larger than the sum of its proper divisors (625732543).

2133643265 is a wasteful number, since it uses less digits than its factorization.

2133643265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24448.

The product of its digits is 77760, while the sum is 35.

The square root of 2133643265 is about 46191.3765220306. The cubic root of 2133643265 is about 1287.3815172334.

The spelling of 2133643265 in words is "two billion, one hundred thirty-three million, six hundred forty-three thousand, two hundred sixty-five".