14131651561 has 2 divisors, whose sum is σ = 14131651562. Its totient is φ = 14131651560.

The previous prime is 14131651529. The next prime is 14131651571. The reversal of 14131651561 is 16515613141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10453835536 + 3677816025 = 102244^2 + 60645^2 .

It is a cyclic number.

It is not a de Polignac number, because 14131651561 - 2⁵ = 14131651529 is a prime.

It is not a weakly prime, because it can be changed into another prime (14131651571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7065825780 + 7065825781.

It is an arithmetic number, because the mean of its divisors is an integer number (7065825781).

Almost surely, 2^14131651561 is an apocalyptic number.

It is an amenable number.

14131651561 is a deficient number, since it is larger than the sum of its proper divisors (1).

14131651561 is an equidigital number, since it uses as much as digits as its factorization.

14131651561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 34.

The spelling of 14131651561 in words is "fourteen billion, one hundred thirty-one million, six hundred fifty-one thousand, five hundred sixty-one".