2266661636 has 12 divisors (see below), whose sum is σ = 3968972112. Its totient is φ = 1132669608.

The previous prime is 2266661609. The next prime is 2266661641. The reversal of 2266661636 is 6361666622.

It is a super-2 number, since 2×2266661636² = 10275509944228392992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157550 + ... + 171333.

It is an arithmetic number, because the mean of its divisors is an integer number (330747676).

Almost surely, 2^2266661636 is an apocalyptic number.

It is an amenable number.

2266661636 is a deficient number, since it is larger than the sum of its proper divisors (1702310476).

2266661636 is a wasteful number, since it uses less digits than its factorization.

2266661636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330610 (or 330608 counting only the distinct ones).

The product of its digits is 559872, while the sum is 44.

The square root of 2266661636 is about 47609.4700243554. The cubic root of 2266661636 is about 1313.5972523684.

The spelling of 2266661636 in words is "two billion, two hundred sixty-six million, six hundred sixty-one thousand, six hundred thirty-six".