2164858966559 has 2 divisors, whose sum is σ = 2164858966560. Its totient is φ = 2164858966558.

The previous prime is 2164858966531. The next prime is 2164858966561. The reversal of 2164858966559 is 9556698584612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164858966559 - 2¹² = 2164858962463 is a prime.

It is a super-2 number, since 2×2164858966559² (a number of 25 digits) contains 22 as substring.

Together with 2164858966561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164858962559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082429483279 + 1082429483280.

It is an arithmetic number, because the mean of its divisors is an integer number (1082429483280).

Almost surely, 2^{2164858966559} is an apocalyptic number.

2164858966559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164858966559 is an equidigital number, since it uses as much as digits as its factorization.

2164858966559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744000, while the sum is 74.

The spelling of 2164858966559 in words is "two trillion, one hundred sixty-four billion, eight hundred fifty-eight million, nine hundred sixty-six thousand, five hundred fifty-nine".