80163666 has 48 divisors (see below), whose sum is σ = 193078080. Its totient is φ = 23830560.

The previous prime is 80163661. The next prime is 80163667. The reversal of 80163666 is 66636108.

It is a self number, because there is not a number n which added to its sum of digits gives 80163666.

It is not an unprimeable number, because it can be changed into a prime (80163661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6675 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (4022460).

Almost surely, 2^80163666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80163666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96539040).

80163666 is an abundant number, since it is smaller than the sum of its proper divisors (112914414).

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

80163666 is a wasteful number, since it uses less digits than its factorization.

80163666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711 (or 7708 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 80163666 is about 8953.4164429004. The cubic root of 80163666 is about 431.1805776089.

The spelling of 80163666 in words is "eighty million, one hundred sixty-three thousand, six hundred sixty-six".