2279863566 has 24 divisors (see below), whose sum is σ = 5099050944. Its totient is φ = 735439680.

The previous prime is 2279863543. The next prime is 2279863567. The reversal of 2279863566 is 6653689722.

2279863566 is a `hidden beast` number, since 2 + 2 + 79 + 8 + 6 + 3 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279863567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2042331 + ... + 2043446.

It is an arithmetic number, because the mean of its divisors is an integer number (212460456).

Almost surely, 2^2279863566 is an apocalyptic number.

2279863566 is an abundant number, since it is smaller than the sum of its proper divisors (2819187378).

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

2279863566 is a wasteful number, since it uses less digits than its factorization.

2279863566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085816 (or 4085813 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 2279863566 is about 47747.9168760272. The cubic root of 2279863566 is about 1316.1426195737.

The spelling of 2279863566 in words is "two billion, two hundred seventy-nine million, eight hundred sixty-three thousand, five hundred sixty-six".