80533680864 has 144 divisors (see below), whose sum is σ = 261615699072. Its totient is φ = 21239622144.

The previous prime is 80533680767. The next prime is 80533680883. The reversal of 80533680864 is 46808633508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240994 + ... + 468129.

It is an arithmetic number, because the mean of its divisors is an integer number (1816775688).

Almost surely, 2^80533680864 is an apocalyptic number.

80533680864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80533680864 is an abundant number, since it is smaller than the sum of its proper divisors (181082018208).

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

80533680864 is a wasteful number, since it uses less digits than its factorization.

80533680864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709169 (or 709148 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 80533680864 in words is "eighty billion, five hundred thirty-three million, six hundred eighty thousand, eight hundred sixty-four".