2197216576 has 14 divisors (see below), whose sum is σ = 4360101770. Its totient is φ = 1098608256.

The previous prime is 2197216531. The next prime is 2197216579. The reversal of 2197216576 is 6756127912.

It can be written as a sum of positive squares in only one way, i.e., 1662682176 + 534534400 = 40776^2 + 23120^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197216579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17165691 + ... + 17165818.

Almost surely, 2^2197216576 is an apocalyptic number.

It is an amenable number.

2197216576 is a deficient number, since it is larger than the sum of its proper divisors (2162885194).

2197216576 is an equidigital number, since it uses as much as digits as its factorization.

2197216576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34331521 (or 34331511 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 2197216576 is about 46874.4768077469. The cubic root of 2197216576 is about 1300.0427157562.

The spelling of 2197216576 in words is "two billion, one hundred ninety-seven million, two hundred sixteen thousand, five hundred seventy-six".