80836644663808 has 80 divisors (see below), whose sum is σ = 179087126708160. Its totient is φ = 36141569740800.

The previous prime is 80836644663787. The next prime is 80836644663809.

80836644663808 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (80836644663809) 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, 117304788 + ... + 117991891.

It is an arithmetic number, because the mean of its divisors is an integer number (2238589083852).

Almost surely, 2^{80836644663808} is an apocalyptic number.

80836644663808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

80836644663808 is an abundant number, since it is smaller than the sum of its proper divisors (98250482044352).

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

80836644663808 is a wasteful number, since it uses less digits than its factorization.

80836644663808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235296769 (or 235296753 counting only the distinct ones).

The product of its (nonzero) digits is 764411904, while the sum is 70.

The spelling of 80836644663808 in words is "eighty trillion, eight hundred thirty-six billion, six hundred forty-four million, six hundred sixty-three thousand, eight hundred eight".