2235566689 has 16 divisors (see below), whose sum is σ = 2327165632. Its totient is φ = 2145927168.

The previous prime is 2235566687. The next prime is 2235566713. The reversal of 2235566689 is 9866655322.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2235566689 - 2¹ = 2235566687 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2235566681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938337 + ... + 1939489.

It is an arithmetic number, because the mean of its divisors is an integer number (145447852).

Almost surely, 2^2235566689 is an apocalyptic number.

It is an amenable number.

2235566689 is a deficient number, since it is larger than the sum of its proper divisors (91598943).

2235566689 is a wasteful number, since it uses less digits than its factorization.

2235566689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936.

The product of its digits is 4665600, while the sum is 52.

The square root of 2235566689 is about 47281.7796725123. The cubic root of 2235566689 is about 1307.5627602776.

The spelling of 2235566689 in words is "two billion, two hundred thirty-five million, five hundred sixty-six thousand, six hundred eighty-nine".