28583363213566 has 24 divisors (see below), whose sum is σ = 49876961043960. Its totient is φ = 12249543951792.

The previous prime is 28583363213557. The next prime is 28583363213609. The reversal of 28583363213566 is 66531236338582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3001980 + ... + 8135023.

It is an arithmetic number, because the mean of its divisors is an integer number (2078206710165).

Almost surely, 2^{28583363213566} is an apocalyptic number.

28583363213566 is a deficient number, since it is larger than the sum of its proper divisors (21293597830394).

28583363213566 is a wasteful number, since it uses less digits than its factorization.

28583363213566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11163208 (or 11163201 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 61.

The spelling of 28583363213566 in words is "twenty-eight trillion, five hundred eighty-three billion, three hundred sixty-three million, two hundred thirteen thousand, five hundred sixty-six".