8065663663 has 4 divisors (see below), whose sum is σ = 8066033560. Its totient is φ = 8065293768.

The previous prime is 8065663603. The next prime is 8065663673. The reversal of 8065663663 is 3663665608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8065663663 - 2¹³ = 8065655471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8065663603) 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, 150045 + ... + 196582.

It is an arithmetic number, because the mean of its divisors is an integer number (2016508390).

Almost surely, 2^8065663663 is an apocalyptic number.

8065663663 is a deficient number, since it is larger than the sum of its proper divisors (369897).

8065663663 is a wasteful number, since it uses less digits than its factorization.

8065663663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369896.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The square root of 8065663663 is about 89809.0399848479. The cubic root of 8065663663 is about 2005.4570685755.

The spelling of 8065663663 in words is "eight billion, sixty-five million, six hundred sixty-three thousand, six hundred sixty-three".