80366563 has 2 divisors, whose sum is σ = 80366564. Its totient is φ = 80366562.

The previous prime is 80366557. The next prime is 80366597. The reversal of 80366563 is 36566308.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80366563 - 2⁹ = 80366051 is a prime.

It is not a weakly prime, because it can be changed into another prime (80366543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40183281 + 40183282.

It is an arithmetic number, because the mean of its divisors is an integer number (40183282).

Almost surely, 2^80366563 is an apocalyptic number.

80366563 is a deficient number, since it is larger than the sum of its proper divisors (1).

80366563 is an equidigital number, since it uses as much as digits as its factorization.

80366563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 80366563 is about 8964.7399850749. The cubic root of 80366563 is about 431.5440487600.

The spelling of 80366563 in words is "eighty million, three hundred sixty-six thousand, five hundred sixty-three".