10665563 has 2 divisors, whose sum is σ = 10665564. Its totient is φ = 10665562.

The previous prime is 10665559. The next prime is 10665619. The reversal of 10665563 is 36556601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10665563 - 2² = 10665559 is a prime.

It is a super-2 number, since 2×10665563² = 227508468213938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10665503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5332781 + 5332782.

It is an arithmetic number, because the mean of its divisors is an integer number (5332782).

Almost surely, 2^10665563 is an apocalyptic number.

10665563 is a deficient number, since it is larger than the sum of its proper divisors (1).

10665563 is an equidigital number, since it uses as much as digits as its factorization.

10665563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 10665563 is about 3265.8173555788. The cubic root of 10665563 is about 220.1208908581.

The spelling of 10665563 in words is "ten million, six hundred sixty-five thousand, five hundred sixty-three".