2133532665 has 48 divisors (see below), whose sum is σ = 4143387456. Its totient is φ = 1006473600.

The previous prime is 2133532651. The next prime is 2133532669. The reversal of 2133532665 is 5662353312.

It is not a de Polignac number, because 2133532665 - 2⁵ = 2133532633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2133532669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39931 + ... + 76560.

It is an arithmetic number, because the mean of its divisors is an integer number (86320572).

Almost surely, 2^2133532665 is an apocalyptic number.

It is an amenable number.

2133532665 is a deficient number, since it is larger than the sum of its proper divisors (2009854791).

2133532665 is a wasteful number, since it uses less digits than its factorization.

2133532665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116550 (or 116547 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

The square root of 2133532665 is about 46190.1793133562. The cubic root of 2133532665 is about 1287.3592725188.

Adding to 2133532665 its reverse (5662353312), we get a palindrome (7795885977).

The spelling of 2133532665 in words is "two billion, one hundred thirty-three million, five hundred thirty-two thousand, six hundred sixty-five".