80671063680 has 96 divisors (see below), whose sum is σ = 278567286660. Its totient is φ = 21512282112.

The previous prime is 80671063657. The next prime is 80671063691. The reversal of 80671063680 is 8636017608.

80671063680 is a `hidden beast` number, since 8 + 0 + 6 + 7 + 1 + 0 + 636 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 77600130624 + 3070933056 = 278568^2 + 55416^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6996937 + ... + 7008456.

Almost surely, 2^80671063680 is an apocalyptic number.

80671063680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80671063680 is an abundant number, since it is smaller than the sum of its proper divisors (197896222980).

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

80671063680 is a wasteful number, since it uses less digits than its factorization.

80671063680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14005418 (or 14005403 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 80671063680 in words is "eighty billion, six hundred seventy-one million, sixty-three thousand, six hundred eighty".