2199455650 has 72 divisors (see below), whose sum is σ = 4837247316. Its totient is φ = 741686400.

The previous prime is 2199455623. The next prime is 2199455651. The reversal of 2199455650 is 565549912.

It can be written as a sum of positive squares in 6 ways, for example, as 110691441 + 2088764209 = 10521^2 + 45703^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2199455650.

It is not an unprimeable number, because it can be changed into a prime (2199455651) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 142092 + ... + 156808.

Almost surely, 2^2199455650 is an apocalyptic number.

2199455650 is an abundant number, since it is smaller than the sum of its proper divisors (2637791666).

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

2199455650 is a wasteful number, since it uses less digits than its factorization.

2199455650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14804 (or 14792 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 46.

The square root of 2199455650 is about 46898.3544487437. The cubic root of 2199455650 is about 1300.4841687674.

The spelling of 2199455650 in words is "two billion, one hundred ninety-nine million, four hundred fifty-five thousand, six hundred fifty".