2646664355 has 8 divisors (see below), whose sum is σ = 3193545264. Its totient is φ = 2105632800.

The previous prime is 2646664343. The next prime is 2646664403. The reversal of 2646664355 is 5534666462.

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 2646664355 - 2⁸ = 2646664099 is a prime.

It is a Duffinian 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, 1461341 + ... + 1463150.

It is an arithmetic number, because the mean of its divisors is an integer number (399193158).

Almost surely, 2^2646664355 is an apocalyptic number.

2646664355 is a deficient number, since it is larger than the sum of its proper divisors (546880909).

2646664355 is a wasteful number, since it uses less digits than its factorization.

2646664355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924677.

The product of its digits is 3110400, while the sum is 47.

The square root of 2646664355 is about 51445.7418548902. The cubic root of 2646664355 is about 1383.2466362982.

The spelling of 2646664355 in words is "two billion, six hundred forty-six million, six hundred sixty-four thousand, three hundred fifty-five".