366320881 has 2 divisors, whose sum is σ = 366320882. Its totient is φ = 366320880.

The previous prime is 366320819. The next prime is 366320891. The reversal of 366320881 is 188023663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 261954225 + 104366656 = 16185^2 + 10216^2 .

It is a cyclic number.

It is not a de Polignac number, because 366320881 - 2¹⁵ = 366288113 is a prime.

It is a super-2 number, since 2×366320881² = 268381975713232322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 366320881.

It is not a weakly prime, because it can be changed into another prime (366320891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183160440 + 183160441.

It is an arithmetic number, because the mean of its divisors is an integer number (183160441).

Almost surely, 2^366320881 is an apocalyptic number.

It is an amenable number.

366320881 is a deficient number, since it is larger than the sum of its proper divisors (1).

366320881 is an equidigital number, since it uses as much as digits as its factorization.

366320881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 366320881 is about 19139.5109916633. The cubic root of 366320881 is about 715.5179913119.

The spelling of 366320881 in words is "three hundred sixty-six million, three hundred twenty thousand, eight hundred eighty-one".