6216323143561 has 8 divisors (see below), whose sum is σ = 6224699416320. Its totient is φ = 6207952502592.

The previous prime is 6216323143553. The next prime is 6216323143571. The reversal of 6216323143561 is 1653413236126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6216323143561 - 2³ = 6216323143553 is a prime.

It is a super-2 number, since 2×6216323143561² (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 (6216323143501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803460 + ... + 3616378.

It is an arithmetic number, because the mean of its divisors is an integer number (778087427040).

Almost surely, 2^{6216323143561} is an apocalyptic number.

It is an amenable number.

6216323143561 is a deficient number, since it is larger than the sum of its proper divisors (8376272759).

6216323143561 is a wasteful number, since it uses less digits than its factorization.

6216323143561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815895.

The product of its digits is 466560, while the sum is 43.

Adding to 6216323143561 its reverse (1653413236126), we get a palindrome (7869736379687).

The spelling of 6216323143561 in words is "six trillion, two hundred sixteen billion, three hundred twenty-three million, one hundred forty-three thousand, five hundred sixty-one".