2009669855 has 8 divisors (see below), whose sum is σ = 2414871600. Its totient is φ = 1605557376.

The previous prime is 2009669819. The next prime is 2009669867. The reversal of 2009669855 is 5589669002.

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

It is a cyclic number.

It is not a de Polignac number, because 2009669855 - 2⁶ = 2009669791 is a prime.

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, 268250 + ... + 275639.

It is an arithmetic number, because the mean of its divisors is an integer number (301858950).

Almost surely, 2^2009669855 is an apocalyptic number.

2009669855 is a deficient number, since it is larger than the sum of its proper divisors (405201745).

2009669855 is an equidigital number, since it uses as much as digits as its factorization.

2009669855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544633.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 2009669855 is about 44829.3414517769. The cubic root of 2009669855 is about 1261.9483284592.

The spelling of 2009669855 in words is "two billion, nine million, six hundred sixty-nine thousand, eight hundred fifty-five".