2266666664 has 16 divisors (see below), whose sum is σ = 4254995220. Its totient is φ = 1132001280.

The previous prime is 2266666621. The next prime is 2266666667. The reversal of 2266666664 is 4666666622.

It can be written as a sum of positive squares in 2 ways, for example, as 1810502500 + 456164164 = 42550^2 + 21358^2 .

It is not an unprimeable number, because it can be changed into a prime (2266666667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159257 + ... + 172904.

Almost surely, 2^2266666664 is an apocalyptic number.

It is an amenable number.

2266666664 is a deficient number, since it is larger than the sum of its proper divisors (1988328556).

2266666664 is a wasteful number, since it uses less digits than its factorization.

2266666664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333020 (or 333016 counting only the distinct ones).

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

The square root of 2266666664 is about 47609.5228289467. The cubic root of 2266666664 is about 1313.5982236591.

The spelling of 2266666664 in words is "two billion, two hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-four".