2666415223 has 2 divisors, whose sum is σ = 2666415224. Its totient is φ = 2666415222.

The previous prime is 2666415221. The next prime is 2666415247. The reversal of 2666415223 is 3225146662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2666415223 - 2¹ = 2666415221 is a prime.

It is a super-2 number, since 2×2666415223² = 14219540282892279458, which contains 22 as substring.

Together with 2666415221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666415221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333207611 + 1333207612.

It is an arithmetic number, because the mean of its divisors is an integer number (1333207612).

Almost surely, 2^2666415223 is an apocalyptic number.

2666415223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666415223 is an equidigital number, since it uses as much as digits as its factorization.

2666415223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 2666415223 is about 51637.3432992055. The cubic root of 2666415223 is about 1386.6789620060.

The spelling of 2666415223 in words is "two billion, six hundred sixty-six million, four hundred fifteen thousand, two hundred twenty-three".