80966718 has 72 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 22559040.

The previous prime is 80966713. The next prime is 80966723. The reversal of 80966718 is 81766908.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80966713) and next prime (80966723).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80966713) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35043 + ... + 37281.

It is an arithmetic number, because the mean of its divisors is an integer number (2904720).

Almost surely, 2^80966718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80966718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

80966718 is an abundant number, since it is smaller than the sum of its proper divisors (128173122).

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

80966718 is a wasteful number, since it uses less digits than its factorization.

80966718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302 (or 2292 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 80966718 is about 8998.1508100276. The cubic root of 80966718 is about 432.6156025415.

The spelling of 80966718 in words is "eighty million, nine hundred sixty-six thousand, seven hundred eighteen".