2133558855 has 24 divisors (see below), whose sum is σ = 3825694080. Its totient is φ = 1098659520.

The previous prime is 2133558839. The next prime is 2133558893. The reversal of 2133558855 is 5588553312.

2133558855 is a `hidden beast` number, since 2 + 13 + 3 + 5 + 588 + 55 = 666.

It is not a de Polignac number, because 2133558855 - 2⁴ = 2133558839 is a prime.

It is a super-2 number, since 2×2133558855² = 9104146775497822050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2133558855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 816151 + ... + 818760.

It is an arithmetic number, because the mean of its divisors is an integer number (159403920).

Almost surely, 2^2133558855 is an apocalyptic number.

2133558855 is a deficient number, since it is larger than the sum of its proper divisors (1692135225).

2133558855 is a wasteful number, since it uses less digits than its factorization.

2133558855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634951 (or 1634948 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 2133558855 is about 46190.4628143083. The cubic root of 2133558855 is about 1287.3645401206.

The spelling of 2133558855 in words is "two billion, one hundred thirty-three million, five hundred fifty-eight thousand, eight hundred fifty-five".