80166706368 has 112 divisors (see below), whose sum is σ = 247356172800. Its totient is φ = 22904754432.

The previous prime is 80166706357. The next prime is 80166706369. The reversal of 80166706368 is 86360766108.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 80166706368.

It is not an unprimeable number, because it can be changed into a prime (80166706369) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 542796 + ... + 674507.

Almost surely, 2^80166706368 is an apocalyptic number.

It is an amenable number.

80166706368 is an abundant number, since it is smaller than the sum of its proper divisors (167189466432).

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

80166706368 is a wasteful number, since it uses less digits than its factorization.

80166706368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217339 (or 1217315 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 80166706368 in words is "eighty billion, one hundred sixty-six million, seven hundred six thousand, three hundred sixty-eight".