2297218561 has 16 divisors (see below), whose sum is σ = 2603373696. Its totient is φ = 2008720000.

The previous prime is 2297218559. The next prime is 2297218589. The reversal of 2297218561 is 1658127922.

It is a cyclic number.

It is not a de Polignac number, because 2297218561 - 2¹ = 2297218559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2297218361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3850 + ... + 67891.

It is an arithmetic number, because the mean of its divisors is an integer number (162710856).

Almost surely, 2^2297218561 is an apocalyptic number.

It is an amenable number.

2297218561 is a deficient number, since it is larger than the sum of its proper divisors (306155135).

2297218561 is a wasteful number, since it uses less digits than its factorization.

2297218561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71864.

The product of its digits is 120960, while the sum is 43.

The square root of 2297218561 is about 47929.3079545282. The cubic root of 2297218561 is about 1319.4738033152.

The spelling of 2297218561 in words is "two billion, two hundred ninety-seven million, two hundred eighteen thousand, five hundred sixty-one".