80017065 has 20 divisors (see below), whose sum is σ = 143438724. Its totient is φ = 42675552.

The previous prime is 80017033. The next prime is 80017073. The reversal of 80017065 is 56071008.

It can be written as a sum of positive squares in 2 ways, for example, as 56746089 + 23270976 = 7533^2 + 4824^2 .

It is not a de Polignac number, because 80017065 - 2⁵ = 80017033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98382 + ... + 99191.

Almost surely, 2^80017065 is an apocalyptic number.

It is an amenable number.

80017065 is a deficient number, since it is larger than the sum of its proper divisors (63421659).

80017065 is a wasteful number, since it uses less digits than its factorization.

80017065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197590 (or 197581 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 80017065 is about 8945.2258216325. The cubic root of 80017065 is about 430.9175736848.

The spelling of 80017065 in words is "eighty million, seventeen thousand, sixty-five".