2666616046223 has 2 divisors, whose sum is σ = 2666616046224. Its totient is φ = 2666616046222.

The previous prime is 2666616046189. The next prime is 2666616046243. The reversal of 2666616046223 is 3226406166662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666616046223 - 2¹⁶ = 2666615980687 is a prime.

It is a super-2 number, since 2×2666616046223² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666616046243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333308023111 + 1333308023112.

It is an arithmetic number, because the mean of its divisors is an integer number (1333308023112).

Almost surely, 2^{2666616046223} is an apocalyptic number.

2666616046223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666616046223 is an equidigital number, since it uses as much as digits as its factorization.

2666616046223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 2666616046223 in words is "two trillion, six hundred sixty-six billion, six hundred sixteen million, forty-six thousand, two hundred twenty-three".