2666889107 has 2 divisors, whose sum is σ = 2666889108. Its totient is φ = 2666889106.

The previous prime is 2666889101. The next prime is 2666889109. The reversal of 2666889107 is 7019886662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666889107 - 2¹⁶ = 2666823571 is a prime.

It is a super-2 number, since 2×2666889107² = 14224595018070514898, which contains 22 as substring.

Together with 2666889109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2666889101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333444553 + 1333444554.

It is an arithmetic number, because the mean of its divisors is an integer number (1333444554).

Almost surely, 2^2666889107 is an apocalyptic number.

2666889107 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666889107 is an equidigital number, since it uses as much as digits as its factorization.

2666889107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 2666889107 is about 51641.9316737862. The cubic root of 2666889107 is about 1386.7611055075.

The spelling of 2666889107 in words is "two billion, six hundred sixty-six million, eight hundred eighty-nine thousand, one hundred seven".