2211611612016 has 40 divisors (see below), whose sum is σ = 5714677054720. Its totient is φ = 737030056896.

The previous prime is 2211611611921. The next prime is 2211611612029. The reversal of 2211611612016 is 6102161161122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225896 + ... + 5633223.

It is an arithmetic number, because the mean of its divisors is an integer number (142866926368).

Almost surely, 2^{2211611612016} is an apocalyptic number.

It is an amenable number.

2211611612016 is an abundant number, since it is smaller than the sum of its proper divisors (3503065442704).

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

2211611612016 is a wasteful number, since it uses less digits than its factorization.

2211611612016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10863373 (or 10863367 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

Adding to 2211611612016 its reverse (6102161161122), we get a palindrome (8313772773138).

The spelling of 2211611612016 in words is "two trillion, two hundred eleven billion, six hundred eleven million, six hundred twelve thousand, sixteen".