6553021161 has 16 divisors (see below), whose sum is σ = 9253013184. Its totient is φ = 4110948864.

The previous prime is 6553021133. The next prime is 6553021187. The reversal of 6553021161 is 1611203556.

It is not a de Polignac number, because 6553021161 - 2⁵ = 6553021129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6553021121) 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, 436990 + ... + 451736.

It is an arithmetic number, because the mean of its divisors is an integer number (578313324).

Almost surely, 2^6553021161 is an apocalyptic number.

It is an amenable number.

6553021161 is a deficient number, since it is larger than the sum of its proper divisors (2699992023).

6553021161 is a wasteful number, since it uses less digits than its factorization.

6553021161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23480.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 6553021161 is about 80950.7329244152. The cubic root of 6553021161 is about 1871.3162552773.

The spelling of 6553021161 in words is "six billion, five hundred fifty-three million, twenty-one thousand, one hundred sixty-one".