80566193 has 2 divisors, whose sum is σ = 80566194. Its totient is φ = 80566192.

The previous prime is 80566181. The next prime is 80566223. The reversal of 80566193 is 39166508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74356129 + 6210064 = 8623^2 + 2492^2 .

It is a cyclic number.

It is not a de Polignac number, because 80566193 - 2²⁰ = 79517617 is a prime.

It is a super-2 number, since 2×80566193² = 12981822909026498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80566153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283096 + 40283097.

It is an arithmetic number, because the mean of its divisors is an integer number (40283097).

Almost surely, 2^80566193 is an apocalyptic number.

It is an amenable number.

80566193 is a deficient number, since it is larger than the sum of its proper divisors (1).

80566193 is an equidigital number, since it uses as much as digits as its factorization.

80566193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 80566193 is about 8975.8672561486. The cubic root of 80566193 is about 431.9010708109.

The spelling of 80566193 in words is "eighty million, five hundred sixty-six thousand, one hundred ninety-three".