4021611366559 has 2 divisors, whose sum is σ = 4021611366560. Its totient is φ = 4021611366558.

The previous prime is 4021611366499. The next prime is 4021611366569. The reversal of 4021611366559 is 9556631161204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4021611366559 - 2⁷ = 4021611366431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021611366569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010805683279 + 2010805683280.

It is an arithmetic number, because the mean of its divisors is an integer number (2010805683280).

Almost surely, 2^{4021611366559} is an apocalyptic number.

4021611366559 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021611366559 is an equidigital number, since it uses as much as digits as its factorization.

4021611366559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 4021611366559 in words is "four trillion, twenty-one billion, six hundred eleven million, three hundred sixty-six thousand, five hundred fifty-nine".