6645683417 has 8 divisors (see below), whose sum is σ = 6703948800. Its totient is φ = 6587653264.

The previous prime is 6645683383. The next prime is 6645683483. The reversal of 6645683417 is 7143865466.

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 6645683417 - 2⁶ = 6645683353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6645683117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 115302.

It is an arithmetic number, because the mean of its divisors is an integer number (837993600).

Almost surely, 2^6645683417 is an apocalyptic number.

It is an amenable number.

6645683417 is a deficient number, since it is larger than the sum of its proper divisors (58265383).

6645683417 is a wasteful number, since it uses less digits than its factorization.

6645683417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117615.

The product of its digits is 2903040, while the sum is 50.

The square root of 6645683417 is about 81521.0611866651. The cubic root of 6645683417 is about 1880.0953830624.

The spelling of 6645683417 in words is "six billion, six hundred forty-five million, six hundred eighty-three thousand, four hundred seventeen".