2666226469 has 2 divisors, whose sum is σ = 2666226470. Its totient is φ = 2666226468.

The previous prime is 2666226463. The next prime is 2666226527. The reversal of 2666226469 is 9646226662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2635590244 + 30636225 = 51338^2 + 5535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2666226469 is a prime.

It is a super-2 number, since 2×2666226469² = 14217527167992415922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2666226463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333113234 + 1333113235.

It is an arithmetic number, because the mean of its divisors is an integer number (1333113235).

Almost surely, 2^2666226469 is an apocalyptic number.

It is an amenable number.

2666226469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666226469 is an equidigital number, since it uses as much as digits as its factorization.

2666226469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 49.

The square root of 2666226469 is about 51635.5155779431. The cubic root of 2666226469 is about 1386.6462404985.

The spelling of 2666226469 in words is "two billion, six hundred sixty-six million, two hundred twenty-six thousand, four hundred sixty-nine".