6316641461551 has 2 divisors, whose sum is σ = 6316641461552. Its totient is φ = 6316641461550.

The previous prime is 6316641461539. The next prime is 6316641461677. The reversal of 6316641461551 is 1551641466136.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6316641461551 - 2²³ = 6316633072943 is a prime.

It is a super-3 number, since 3×6316641461551³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6316641461495 and 6316641461504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6316641468551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3158320730775 + 3158320730776.

It is an arithmetic number, because the mean of its divisors is an integer number (3158320730776).

Almost surely, 2^{6316641461551} is an apocalyptic number.

6316641461551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6316641461551 is an equidigital number, since it uses as much as digits as its factorization.

6316641461551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The spelling of 6316641461551 in words is "six trillion, three hundred sixteen billion, six hundred forty-one million, four hundred sixty-one thousand, five hundred fifty-one".