220002566 has 16 divisors (see below), whose sum is σ = 378441504. Its totient is φ = 93963264.

The previous prime is 220002551. The next prime is 220002581. The reversal of 220002566 is 665200022.

It is a happy number.

220002566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220002551) and next prime (220002581).

It is a super-2 number, since 2×220002566² = 96802258093168712, which contains 22 as substring.

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, 22715 + ... + 30918.

It is an arithmetic number, because the mean of its divisors is an integer number (23652594).

Almost surely, 2^220002566 is an apocalyptic number.

220002566 is a deficient number, since it is larger than the sum of its proper divisors (158438938).

220002566 is a wasteful number, since it uses less digits than its factorization.

220002566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53935.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 220002566 is about 14832.4834737815. The cubic root of 220002566 is about 603.6834207095.

Adding to 220002566 its reverse (665200022), we get a palindrome (885202588).

The spelling of 220002566 in words is "two hundred twenty million, two thousand, five hundred sixty-six".