14546555561 has 2 divisors, whose sum is σ = 14546555562. Its totient is φ = 14546555560.

The previous prime is 14546555549. The next prime is 14546555623. The reversal of 14546555561 is 16555564541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8561985961 + 5984569600 = 92531^2 + 77360^2 .

It is an emirp because it is prime and its reverse (16555564541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14546555561 is a prime.

It is not a weakly prime, because it can be changed into another prime (14546555861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7273277780 + 7273277781.

It is an arithmetic number, because the mean of its divisors is an integer number (7273277781).

Almost surely, 2^14546555561 is an apocalyptic number.

It is an amenable number.

14546555561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14546555561 is an equidigital number, since it uses as much as digits as its factorization.

14546555561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800000, while the sum is 47.

The spelling of 14546555561 in words is "fourteen billion, five hundred forty-six million, five hundred fifty-five thousand, five hundred sixty-one".