16461751415777 has 2 divisors, whose sum is σ = 16461751415778. Its totient is φ = 16461751415776.

The previous prime is 16461751415773. The next prime is 16461751415779. The reversal of 16461751415777 is 77751415716461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13372449530896 + 3089301884881 = 3656836^2 + 1757641^2 .

It is a cyclic number.

It is not a de Polignac number, because 16461751415777 - 2² = 16461751415773 is a prime.

Together with 16461751415779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16461751415771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8230875707888 + 8230875707889.

It is an arithmetic number, because the mean of its divisors is an integer number (8230875707889).

Almost surely, 2^{16461751415777} is an apocalyptic number.

It is an amenable number.

16461751415777 is a deficient number, since it is larger than the sum of its proper divisors (1).

16461751415777 is an equidigital number, since it uses as much as digits as its factorization.

16461751415777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34574400, while the sum is 62.

The spelling of 16461751415777 in words is "sixteen trillion, four hundred sixty-one billion, seven hundred fifty-one million, four hundred fifteen thousand, seven hundred seventy-seven".