2291695322112 has 792 divisors, whose sum is σ = 8014671175680. Its totient is φ = 628171407360.

The previous prime is 2291695322101. The next prime is 2291695322159. The reversal of 2291695322112 is 2112235961922.

2291695322112 is a `hidden beast` number, since 2 + 2 + 91 + 6 + 9 + 532 + 21 + 1 + 2 = 666.

It is a super-2 number, since 2×2291695322112² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1777885564 + ... + 1777886852.

Almost surely, 2^{2291695322112} 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 2291695322112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4007335587840).

2291695322112 is an abundant number, since it is smaller than the sum of its proper divisors (5722975853568).

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

2291695322112 is a wasteful number, since it uses less digits than its factorization.

2291695322112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487 (or 1459 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 2291695322112 in words is "two trillion, two hundred ninety-one billion, six hundred ninety-five million, three hundred twenty-two thousand, one hundred twelve".