2116613330266 has 4 divisors (see below), whose sum is σ = 3174919995402. Its totient is φ = 1058306665132.

The previous prime is 2116613330233. The next prime is 2116613330281. The reversal of 2116613330266 is 6620333166112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1105725856225 + 1010887474041 = 1051535^2 + 1005429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529153332565 + ... + 529153332568.

Almost surely, 2^{2116613330266} is an apocalyptic number.

2116613330266 is a deficient number, since it is larger than the sum of its proper divisors (1058306665136).

2116613330266 is a wasteful number, since it uses less digits than its factorization.

2116613330266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058306665135.

The product of its (nonzero) digits is 139968, while the sum is 40.

Adding to 2116613330266 its reverse (6620333166112), we get a palindrome (8736946496378).

The spelling of 2116613330266 in words is "two trillion, one hundred sixteen billion, six hundred thirteen million, three hundred thirty thousand, two hundred sixty-six".