6622849601521 has 16 divisors (see below), whose sum is σ = 6978424527360. Its totient is φ = 6267977907840.

The previous prime is 6622849601497. The next prime is 6622849601531. The reversal of 6622849601521 is 1251069482266.

It is a cyclic number.

It is not a de Polignac number, because 6622849601521 - 2⁷ = 6622849601393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6622849601531) 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 15 ways as a sum of consecutive naturals, for example, 89079055 + ... + 89153371.

It is an arithmetic number, because the mean of its divisors is an integer number (436151532960).

Almost surely, 2^{6622849601521} is an apocalyptic number.

It is an amenable number.

6622849601521 is a deficient number, since it is larger than the sum of its proper divisors (355574925839).

6622849601521 is a wasteful number, since it uses less digits than its factorization.

6622849601521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78984.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 6622849601521 in words is "six trillion, six hundred twenty-two billion, eight hundred forty-nine million, six hundred one thousand, five hundred twenty-one".