2195659220 has 24 divisors (see below), whose sum is σ = 4638501504. Its totient is φ = 873003296.

The previous prime is 2195659187. The next prime is 2195659237. The reversal of 2195659220 is 229565912.

2195659220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 325352 + ... + 332031.

It is an arithmetic number, because the mean of its divisors is an integer number (193270896).

Almost surely, 2^2195659220 is an apocalyptic number.

2195659220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195659220 is an abundant number, since it is smaller than the sum of its proper divisors (2442842284).

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

2195659220 is a wasteful number, since it uses less digits than its factorization.

2195659220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657559 (or 657557 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 2195659220 is about 46857.8618803718. The cubic root of 2195659220 is about 1299.7354925361.

The spelling of 2195659220 in words is "two billion, one hundred ninety-five million, six hundred fifty-nine thousand, two hundred twenty".