80664511663 has 8 divisors (see below), whose sum is σ = 84523852800. Its totient is φ = 76834519608.

The previous prime is 80664511657. The next prime is 80664511673. The reversal of 80664511663 is 36611546608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80664511663 - 2¹⁷ = 80664380591 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 (80664511673) 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, 7331643 + ... + 7342636.

It is an arithmetic number, because the mean of its divisors is an integer number (10565481600).

Almost surely, 2^80664511663 is an apocalyptic number.

80664511663 is a deficient number, since it is larger than the sum of its proper divisors (3859341137).

80664511663 is a wasteful number, since it uses less digits than its factorization.

80664511663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674541.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 80664511663 in words is "eighty billion, six hundred sixty-four million, five hundred eleven thousand, six hundred sixty-three".