80166249 has 6 divisors (see below), whose sum is σ = 115795706. Its totient is φ = 53444160.

The previous prime is 80166227. The next prime is 80166253. The reversal of 80166249 is 94266108.

It can be written as a sum of positive squares in only one way, i.e., 72795024 + 7371225 = 8532^2 + 2715^2 .

It is not a de Polignac number, because 80166249 - 2⁹ = 80165737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80166049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4453672 + ... + 4453689.

Almost surely, 2^80166249 is an apocalyptic number.

It is an amenable number.

80166249 is a deficient number, since it is larger than the sum of its proper divisors (35629457).

80166249 is a wasteful number, since it uses less digits than its factorization.

80166249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8907367 (or 8907364 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 80166249 is about 8953.5606883519. The cubic root of 80166249 is about 431.1852086657.

The spelling of 80166249 in words is "eighty million, one hundred sixty-six thousand, two hundred forty-nine".