4021611366499 has 2 divisors, whose sum is σ = 4021611366500. Its totient is φ = 4021611366498.

The previous prime is 4021611366497. The next prime is 4021611366559. The reversal of 4021611366499 is 9946631161204.

4021611366499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021611366499 - 2¹ = 4021611366497 is a prime.

Together with 4021611366497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4021611366491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010805683249 + 2010805683250.

It is an arithmetic number, because the mean of its divisors is an integer number (2010805683250).

Almost surely, 2^{4021611366499} is an apocalyptic number.

4021611366499 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021611366499 is an equidigital number, since it uses as much as digits as its factorization.

4021611366499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 4021611366499 in words is "four trillion, twenty-one billion, six hundred eleven million, three hundred sixty-six thousand, four hundred ninety-nine".