8227772723566 has 16 divisors (see below), whose sum is σ = 14255606216880. Its totient is φ = 3519902769280.

The previous prime is 8227772723539. The next prime is 8227772723591. The reversal of 8227772723566 is 6653272777228.

It is a junction number, because it is equal to n+sod(n) for n = 8227772723498 and 8227772723507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10999695781 + ... + 10999696528.

It is an arithmetic number, because the mean of its divisors is an integer number (890975388555).

Almost surely, 2^{8227772723566} is an apocalyptic number.

8227772723566 is a deficient number, since it is larger than the sum of its proper divisors (6027833493314).

8227772723566 is a wasteful number, since it uses less digits than its factorization.

8227772723566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21999392339.

The product of its digits is 165957120, while the sum is 64.

The spelling of 8227772723566 in words is "eight trillion, two hundred twenty-seven billion, seven hundred seventy-two million, seven hundred twenty-three thousand, five hundred sixty-six".