2266663273566 has 32 divisors (see below), whose sum is σ = 4541623868448. Its totient is φ = 754172052480.

The previous prime is 2266663273543. The next prime is 2266663273577. The reversal of 2266663273566 is 6653723666622.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18348486 + ... + 18471606.

It is an arithmetic number, because the mean of its divisors is an integer number (141925745889).

Almost surely, 2^{2266663273566} is an apocalyptic number.

2266663273566 is an abundant number, since it is smaller than the sum of its proper divisors (2274960594882).

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

2266663273566 is a wasteful number, since it uses less digits than its factorization.

2266663273566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128716.

The product of its digits is 117573120, while the sum is 60.

The spelling of 2266663273566 in words is "two trillion, two hundred sixty-six billion, six hundred sixty-three million, two hundred seventy-three thousand, five hundred sixty-six".