2664220406 has 8 divisors (see below), whose sum is σ = 3997540344. Its totient is φ = 1331706960.

The previous prime is 2664220397. The next prime is 2664220421. The reversal of 2664220406 is 6040224662.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193295 + ... + 206618.

It is an arithmetic number, because the mean of its divisors is an integer number (499692543).

Almost surely, 2^2664220406 is an apocalyptic number.

2664220406 is a deficient number, since it is larger than the sum of its proper divisors (1333319938).

2664220406 is a wasteful number, since it uses less digits than its factorization.

2664220406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403246.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2664220406 is about 51616.0866978503. The cubic root of 2664220406 is about 1386.2983833691.

The spelling of 2664220406 in words is "two billion, six hundred sixty-four million, two hundred twenty thousand, four hundred six".