6516163201231 has 4 divisors (see below), whose sum is σ = 6532576710952. Its totient is φ = 6499749691512.

The previous prime is 6516163201217. The next prime is 6516163201241. The reversal of 6516163201231 is 1321023616156.

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

It is a cyclic number.

It is not a de Polignac number, because 6516163201231 - 2²⁵ = 6516129646799 is a prime.

It is a super-2 number, since 2×6516163201231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516163201241) 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, 8206754265 + ... + 8206755058.

It is an arithmetic number, because the mean of its divisors is an integer number (1633144177738).

Almost surely, 2^{6516163201231} is an apocalyptic number.

6516163201231 is a deficient number, since it is larger than the sum of its proper divisors (16413509721).

6516163201231 is a wasteful number, since it uses less digits than its factorization.

6516163201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413509720.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 6516163201231 its reverse (1321023616156), we get a palindrome (7837186817387).

The spelling of 6516163201231 in words is "six trillion, five hundred sixteen billion, one hundred sixty-three million, two hundred one thousand, two hundred thirty-one".