6621016017 has 32 divisors (see below), whose sum is σ = 11090433024. Its totient is φ = 3413217600.

The previous prime is 6621015983. The next prime is 6621016063. The reversal of 6621016017 is 7106101266.

It is not a de Polignac number, because 6621016017 - 2⁶ = 6621015953 is a prime.

It is a super-4 number, since 4×6621016017⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (6621016217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79138 + ... + 139659.

It is an arithmetic number, because the mean of its divisors is an integer number (346576032).

Almost surely, 2^6621016017 is an apocalyptic number.

It is an amenable number.

6621016017 is a deficient number, since it is larger than the sum of its proper divisors (4469417007).

6621016017 is a wasteful number, since it uses less digits than its factorization.

6621016017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218949.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 6621016017 is about 81369.6258870594. The cubic root of 6621016017 is about 1877.7663241709.

The spelling of 6621016017 in words is "six billion, six hundred twenty-one million, sixteen thousand, seventeen".