2216986245 has 18 divisors (see below), whose sum is σ = 3843323718. Its totient is φ = 1182224208.

The previous prime is 2216986151. The next prime is 2216986267. The reversal of 2216986245 is 5426896122.

2216986245 is a `hidden beast` number, since 2 + 2 + 16 + 9 + 8 + 624 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1773588996 + 443397249 = 42114^2 + 21057^2 .

It is not a de Polignac number, because 2216986245 - 2⁹ = 2216985733 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2216986245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 312346 + ... + 319364.

Almost surely, 2^2216986245 is an apocalyptic number.

It is an amenable number.

2216986245 is a deficient number, since it is larger than the sum of its proper divisors (1626337473).

2216986245 is an frugal number, since it uses more digits than its factorization.

2216986245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049 (or 7027 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 2216986245 is about 47084.8834022131. The cubic root of 2216986245 is about 1303.9301664853.

Multiplying 2216986245 by its sum of digits (45), we get a square (99764381025 = 315855²).

2216986245 divided by its sum of digits (45) gives a square (49266361 = 7019²).

Multiplying 2216986245 by its product of digits (414720), we get a square (919428535526400 = 30322080²).

The spelling of 2216986245 in words is "two billion, two hundred sixteen million, nine hundred eighty-six thousand, two hundred forty-five".