2219955805 has 8 divisors (see below), whose sum is σ = 2668172544. Its totient is φ = 1773147600.

The previous prime is 2219955779. The next prime is 2219955811. The reversal of 2219955805 is 5085599122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2219955805 - 2¹⁹ = 2219431517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348661 + ... + 354970.

It is an arithmetic number, because the mean of its divisors is an integer number (333521568).

Almost surely, 2^2219955805 is an apocalyptic number.

It is an amenable number.

2219955805 is a deficient number, since it is larger than the sum of its proper divisors (448216739).

2219955805 is an equidigital number, since it uses as much as digits as its factorization.

2219955805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704267.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 2219955805 is about 47116.4069619066. The cubic root of 2219955805 is about 1304.5120933122.

The spelling of 2219955805 in words is "two billion, two hundred nineteen million, nine hundred fifty-five thousand, eight hundred five".