2206669818 has 16 divisors (see below), whose sum is σ = 4605224256. Its totient is φ = 703575840.

The previous prime is 2206669799. The next prime is 2206669849. The reversal of 2206669818 is 8189666022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7995043 + ... + 7995318.

It is an arithmetic number, because the mean of its divisors is an integer number (287826516).

Almost surely, 2^2206669818 is an apocalyptic number.

2206669818 is an abundant number, since it is smaller than the sum of its proper divisors (2398554438).

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

2206669818 is a wasteful number, since it uses less digits than its factorization.

2206669818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15990389.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 2206669818 is about 46975.2042890715. The cubic root of 2206669818 is about 1301.9044705643.

The spelling of 2206669818 in words is "two billion, two hundred six million, six hundred sixty-nine thousand, eight hundred eighteen".