80086665 has 16 divisors (see below), whose sum is σ = 128323008. Its totient is φ = 42651456.

The previous prime is 80086649. The next prime is 80086673. The reversal of 80086665 is 56668008.

It is not a de Polignac number, because 80086665 - 2⁴ = 80086649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8142 + ... + 15048.

It is an arithmetic number, because the mean of its divisors is an integer number (8020188).

Almost surely, 2^80086665 is an apocalyptic number.

It is an amenable number.

80086665 is a deficient number, since it is larger than the sum of its proper divisors (48236343).

80086665 is a wasteful number, since it uses less digits than its factorization.

80086665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7688.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 80086665 is about 8949.1153194045. The cubic root of 80086665 is about 431.0424769228.

The spelling of 80086665 in words is "eighty million, eighty-six thousand, six hundred sixty-five".