366002561 has 2 divisors, whose sum is σ = 366002562. Its totient is φ = 366002560.

The previous prime is 366002467. The next prime is 366002579. The reversal of 366002561 is 165200663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 301682161 + 64320400 = 17369^2 + 8020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-366002561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (366022561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183001280 + 183001281.

It is an arithmetic number, because the mean of its divisors is an integer number (183001281).

Almost surely, 2^366002561 is an apocalyptic number.

It is an amenable number.

366002561 is a deficient number, since it is larger than the sum of its proper divisors (1).

366002561 is an equidigital number, since it uses as much as digits as its factorization.

366002561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 366002561 is about 19131.1934023991. The cubic root of 366002561 is about 715.3106779031.

The spelling of 366002561 in words is "three hundred sixty-six million, two thousand, five hundred sixty-one".