2193166272 has 112 divisors (see below), whose sum is σ = 6343887744. Its totient is φ = 663168000.

The previous prime is 2193166271. The next prime is 2193166291. The reversal of 2193166272 is 2726613912.

It is a self number, because there is not a number n which added to its sum of digits gives 2193166272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193166271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395247 + ... + 1396817.

Almost surely, 2^2193166272 is an apocalyptic number.

2193166272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2193166272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3171943872).

2193166272 is an abundant number, since it is smaller than the sum of its proper divisors (4150721472).

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

2193166272 is a wasteful number, since it uses less digits than its factorization.

2193166272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2248 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 2193166272 is about 46831.2531542772. The cubic root of 2193166272 is about 1299.2434003758.

The spelling of 2193166272 in words is "two billion, one hundred ninety-three million, one hundred sixty-six thousand, two hundred seventy-two".