2691116916220 has 48 divisors (see below), whose sum is σ = 5665376717280. Its totient is φ = 1073775550464.

The previous prime is 2691116916209. The next prime is 2691116916221. The reversal of 2691116916220 is 226196111962.

It is a super-3 number, since 3×2691116916220³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2691116916221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32378076 + ... + 32461084.

It is an arithmetic number, because the mean of its divisors is an integer number (118028681610).

Almost surely, 2^{2691116916220} is an apocalyptic number.

2691116916220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2691116916220 is an abundant number, since it is smaller than the sum of its proper divisors (2974259801060).

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

2691116916220 is a wasteful number, since it uses less digits than its factorization.

2691116916220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87022 (or 87020 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 2691116916220 in words is "two trillion, six hundred ninety-one billion, one hundred sixteen million, nine hundred sixteen thousand, two hundred twenty".