2195111016 has 240 divisors, whose sum is σ = 7206675300. Its totient is φ = 622411776.

The previous prime is 2195111003. The next prime is 2195111033. The reversal of 2195111016 is 6101115912.

It can be written as a sum of positive squares in 2 ways, for example, as 2185188516 + 9922500 = 46746^2 + 3150^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8160130 + ... + 8160398.

Almost surely, 2^2195111016 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 2195111016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603337650).

2195111016 is an abundant number, since it is smaller than the sum of its proper divisors (5011564284).

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

2195111016 is a wasteful number, since it uses less digits than its factorization.

2195111016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 27.

The square root of 2195111016 is about 46852.0118671546. The cubic root of 2195111016 is about 1299.6273124965.

Adding to 2195111016 its reverse (6101115912), we get a palindrome (8296226928).

The spelling of 2195111016 in words is "two billion, one hundred ninety-five million, one hundred eleven thousand, sixteen".