80066664 has 32 divisors (see below), whose sum is σ = 222408000. Its totient is φ = 26688816.

The previous prime is 80066663. The next prime is 80066681. The reversal of 80066664 is 46666008.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (80066663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185124 + ... + 185555.

It is an arithmetic number, because the mean of its divisors is an integer number (6950250).

Almost surely, 2^80066664 is an apocalyptic number.

It is an amenable number.

80066664 is an abundant number, since it is smaller than the sum of its proper divisors (142341336).

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

80066664 is a wasteful number, since it uses less digits than its factorization.

80066664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370694 (or 370684 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 80066664 is about 8947.9977648634. The cubic root of 80066664 is about 431.0065908054.

The spelling of 80066664 in words is "eighty million, sixty-six thousand, six hundred sixty-four".