80000664 has 32 divisors (see below), whose sum is σ = 200448000. Its totient is φ = 26607392.

The previous prime is 80000639. The next prime is 80000681. The reversal of 80000664 is 46600008.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8017 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (6264000).

Almost surely, 2^80000664 is an apocalyptic number.

It is an amenable number.

80000664 is an abundant number, since it is smaller than the sum of its proper divisors (120447336).

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

80000664 is a wasteful number, since it uses less digits than its factorization.

80000664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447 (or 7443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 80000664 is about 8944.3090286506. The cubic root of 80000664 is about 430.8881301236. Note that the first 3 decimals are identical.

The spelling of 80000664 in words is "eighty million, six hundred sixty-four", and thus it is an aban number.