80995207680 has 120 divisors (see below), whose sum is σ = 280509263892. Its totient is φ = 21598715904.

The previous prime is 80995207669. The next prime is 80995207681. The reversal of 80995207680 is 8670259908.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78068830464 + 2926377216 = 279408^2 + 54096^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (80995207681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1734669 + ... + 1780748.

Almost surely, 2^80995207680 is an apocalyptic number.

80995207680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80995207680 is an abundant number, since it is smaller than the sum of its proper divisors (199514056212).

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

80995207680 is a wasteful number, since it uses less digits than its factorization.

80995207680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515446 (or 3515427 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 80995207680 in words is "eighty billion, nine hundred ninety-five million, two hundred seven thousand, six hundred eighty".