6161512465543 has 2 divisors, whose sum is σ = 6161512465544. Its totient is φ = 6161512465542.

The previous prime is 6161512465541. The next prime is 6161512465571. The reversal of 6161512465543 is 3455642151616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6161512465543 - 2¹ = 6161512465541 is a prime.

Together with 6161512465541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6161512465541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080756232771 + 3080756232772.

It is an arithmetic number, because the mean of its divisors is an integer number (3080756232772).

Almost surely, 2^{6161512465543} is an apocalyptic number.

6161512465543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161512465543 is an equidigital number, since it uses as much as digits as its factorization.

6161512465543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592000, while the sum is 49.

The spelling of 6161512465543 in words is "six trillion, one hundred sixty-one billion, five hundred twelve million, four hundred sixty-five thousand, five hundred forty-three".