2691116916216 has 128 divisors (see below), whose sum is σ = 7035787008000. Its totient is φ = 857055513600.

The previous prime is 2691116916209. The next prime is 2691116916221. The reversal of 2691116916216 is 6126196111962.

It is a happy number.

2691116916216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2691116916216² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11783916 + ... + 12010116.

It is an arithmetic number, because the mean of its divisors is an integer number (54967086000).

Almost surely, 2^{2691116916216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2691116916216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3517893504000).

2691116916216 is an abundant number, since it is smaller than the sum of its proper divisors (4344670091784).

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

2691116916216 is a wasteful number, since it uses less digits than its factorization.

2691116916216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226509 (or 226505 counting only the distinct ones).

The product of its digits is 419904, while the sum is 51.

The spelling of 2691116916216 in words is "two trillion, six hundred ninety-one billion, one hundred sixteen million, nine hundred sixteen thousand, two hundred sixteen".