2236668688 has 20 divisors (see below), whose sum is σ = 4415312268. Its totient is φ = 1097233280.

The previous prime is 2236668677. The next prime is 2236668697. The reversal of 2236668688 is 8868666322.

It can be written as a sum of positive squares in 2 ways, for example, as 1627961104 + 608707584 = 40348^2 + 24672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1317943 + ... + 1319638.

Almost surely, 2^2236668688 is an apocalyptic number.

It is an amenable number.

2236668688 is a deficient number, since it is larger than the sum of its proper divisors (2178643580).

2236668688 is a wasteful number, since it uses less digits than its factorization.

2236668688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637642 (or 2637636 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 55.

The square root of 2236668688 is about 47293.4317638295. The cubic root of 2236668688 is about 1307.7775747379. Note that the first 3 decimals are identical.

The spelling of 2236668688 in words is "two billion, two hundred thirty-six million, six hundred sixty-eight thousand, six hundred eighty-eight".