2116636266 has 16 divisors (see below), whose sum is σ = 4234104288. Its totient is φ = 705406800.

The previous prime is 2116636231. The next prime is 2116636267. The reversal of 2116636266 is 6626366112.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2116636267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296 + ... + 65076.

It is an arithmetic number, because the mean of its divisors is an integer number (264631518).

Almost surely, 2^2116636266 is an apocalyptic number.

2116636266 is an abundant number, since it is smaller than the sum of its proper divisors (2117468022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2116636266 is a wasteful number, since it uses less digits than its factorization.

2116636266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69317.

The product of its digits is 93312, while the sum is 39.

The square root of 2116636266 is about 46006.9154149678. The cubic root of 2116636266 is about 1283.9518705089.

The spelling of 2116636266 in words is "two billion, one hundred sixteen million, six hundred thirty-six thousand, two hundred sixty-six".