6516253341601 has 4 divisors (see below), whose sum is σ = 6525316281600. Its totient is φ = 6507190401604.

The previous prime is 6516253341557. The next prime is 6516253341679. The reversal of 6516253341601 is 1061433526156.

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 a cyclic number.

It is not a de Polignac number, because 6516253341601 - 2¹¹ = 6516253339553 is a prime.

It is a super-2 number, since 2×6516253341601² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6516253341691) 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, 4531468921 + ... + 4531470358.

It is an arithmetic number, because the mean of its divisors is an integer number (1631329070400).

Almost surely, 2^{6516253341601} is an apocalyptic number.

It is an amenable number.

6516253341601 is a deficient number, since it is larger than the sum of its proper divisors (9062939999).

6516253341601 is an equidigital number, since it uses as much as digits as its factorization.

6516253341601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9062939998.

The product of its (nonzero) digits is 388800, while the sum is 43.

Adding to 6516253341601 its reverse (1061433526156), we get a palindrome (7577686867757).

The spelling of 6516253341601 in words is "six trillion, five hundred sixteen billion, two hundred fifty-three million, three hundred forty-one thousand, six hundred one".