6163000021 has 4 divisors (see below), whose sum is σ = 6525529452. Its totient is φ = 5800470592.

The previous prime is 6163000013. The next prime is 6163000033. The reversal of 6163000021 is 1200003616.

6163000021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1795640625 + 4367359396 = 42375^2 + 66086^2 .

It is a cyclic number.

It is not a de Polignac number, because 6163000021 - 2³ = 6163000013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6163000091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181264690 + ... + 181264723.

It is an arithmetic number, because the mean of its divisors is an integer number (1631382363).

Almost surely, 2^6163000021 is an apocalyptic number.

It is an amenable number.

6163000021 is a deficient number, since it is larger than the sum of its proper divisors (362529431).

6163000021 is a wasteful number, since it uses less digits than its factorization.

6163000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362529430.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 6163000021 is about 78504.7770584695. Note that the first 3 decimals coincide. The cubic root of 6163000021 is about 1833.4288309006.

Adding to 6163000021 its reverse (1200003616), we get a palindrome (7363003637).

The spelling of 6163000021 in words is "six billion, one hundred sixty-three million, twenty-one", and thus it is an aban number.