5533066665 has 160 divisors (see below), whose sum is σ = 12034176000. Its totient is φ = 2375816832.

The previous prime is 5533066559. The next prime is 5533066697. The reversal of 5533066665 is 5666603355.

5533066665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5533066665 - 2¹⁰ = 5533065641 is a prime.

It is a super-2 number, since 2×5533066665² = 61229653438668444450, 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 5533066665.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7486866 + ... + 7487604.

It is an arithmetic number, because the mean of its divisors is an integer number (75213600).

Almost surely, 2^5533066665 is an apocalyptic number.

It is an amenable number.

5533066665 is an abundant number, since it is smaller than the sum of its proper divisors (6501109335).

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

5533066665 is a wasteful number, since it uses less digits than its factorization.

5533066665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 45.

The square root of 5533066665 is about 74384.5862057456. The cubic root of 5533066665 is about 1768.7045821681.

The spelling of 5533066665 in words is "five billion, five hundred thirty-three million, sixty-six thousand, six hundred sixty-five".