10566436663 has 4 divisors (see below), whose sum is σ = 10579307688. Its totient is φ = 10553565640.

The previous prime is 10566436631. The next prime is 10566436669. The reversal of 10566436663 is 36663466501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36663466501 = 117881 ⋅311021.

It is a cyclic number.

It is not a de Polignac number, because 10566436663 - 2⁵ = 10566436631 is a prime.

It is a super-2 number, since 2×10566436663² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10566436669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6434281 + ... + 6435922.

It is an arithmetic number, because the mean of its divisors is an integer number (2644826922).

Almost surely, 2^10566436663 is an apocalyptic number.

10566436663 is a deficient number, since it is larger than the sum of its proper divisors (12871025).

10566436663 is an equidigital number, since it uses as much as digits as its factorization.

10566436663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871024.

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 10566436663 in words is "ten billion, five hundred sixty-six million, four hundred thirty-six thousand, six hundred sixty-three".