80663836608 has 112 divisors (see below), whose sum is σ = 237459682560. Its totient is φ = 26851329792.

The previous prime is 80663836607. The next prime is 80663836633.

80663836608 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80663836607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1252491 + ... + 1315317.

Almost surely, 2^80663836608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80663836608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118729841280).

80663836608 is an abundant number, since it is smaller than the sum of its proper divisors (156795845952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80663836608 is a wasteful number, since it uses less digits than its factorization.

80663836608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63591 (or 63575 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 80663836608 in words is "eighty billion, six hundred sixty-three million, eight hundred thirty-six thousand, six hundred eight".