6561214113 has 4 divisors (see below), whose sum is σ = 8748285488. Its totient is φ = 4374142740.

The previous prime is 6561214111. The next prime is 6561214183. The reversal of 6561214113 is 3114121656.

It is a happy number.

6561214113 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6561214113 - 2¹ = 6561214111 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6561214111) 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, 1093535683 + ... + 1093535688.

It is an arithmetic number, because the mean of its divisors is an integer number (2187071372).

Almost surely, 2^6561214113 is an apocalyptic number.

It is an amenable number.

6561214113 is a deficient number, since it is larger than the sum of its proper divisors (2187071375).

6561214113 is a wasteful number, since it uses less digits than its factorization.

6561214113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187071374.

The product of its digits is 4320, while the sum is 30.

The square root of 6561214113 is about 81001.3216744023. The cubic root of 6561214113 is about 1872.0958050880.

Adding to 6561214113 its reverse (3114121656), we get a palindrome (9675335769).

The spelling of 6561214113 in words is "six billion, five hundred sixty-one million, two hundred fourteen thousand, one hundred thirteen".