1023495566 has 16 divisors (see below), whose sum is σ = 1588878720. Its totient is φ = 493955040.

The previous prime is 1023495563. The next prime is 1023495581. The reversal of 1023495566 is 6655943201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023495563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2900 + ... + 45336.

It is an arithmetic number, because the mean of its divisors is an integer number (99304920).

Almost surely, 2^1023495566 is an apocalyptic number.

1023495566 is a deficient number, since it is larger than the sum of its proper divisors (565383154).

1023495566 is a wasteful number, since it uses less digits than its factorization.

1023495566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42859.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 1023495566 is about 31992.1172478472. The cubic root of 1023495566 is about 1007.7713056965.

The spelling of 1023495566 in words is "one billion, twenty-three million, four hundred ninety-five thousand, five hundred sixty-six".