80066685 has 16 divisors (see below), whose sum is σ = 135642816. Its totient is φ = 40190208.

The previous prime is 80066681. The next prime is 80066687. The reversal of 80066685 is 58666008.

It is not a de Polignac number, because 80066685 - 2² = 80066681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80066681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156739 + ... + 157248.

It is an arithmetic number, because the mean of its divisors is an integer number (8477676).

Almost surely, 2^80066685 is an apocalyptic number.

80066685 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80066685 is a deficient number, since it is larger than the sum of its proper divisors (55576131).

80066685 is a wasteful number, since it uses less digits than its factorization.

80066685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314012.

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

The square root of 80066685 is about 8947.9989383102. The cubic root of 80066685 is about 431.0066284871.

The spelling of 80066685 in words is "eighty million, sixty-six thousand, six hundred eighty-five".