16146222464161 has 2 divisors, whose sum is σ = 16146222464162. Its totient is φ = 16146222464160.

The previous prime is 16146222464149. The next prime is 16146222464189. The reversal of 16146222464161 is 16146422264161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15394880224161 + 751342240000 = 3923631^2 + 866800^2 .

It is a cyclic number.

It is not a de Polignac number, because 16146222464161 - 2¹³ = 16146222455969 is a prime.

It is not a weakly prime, because it can be changed into another prime (16146222464461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8073111232080 + 8073111232081.

It is an arithmetic number, because the mean of its divisors is an integer number (8073111232081).

Almost surely, 2^{16146222464161} is an apocalyptic number.

It is an amenable number.

16146222464161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16146222464161 is an equidigital number, since it uses as much as digits as its factorization.

16146222464161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 46.

The spelling of 16146222464161 in words is "sixteen trillion, one hundred forty-six billion, two hundred twenty-two million, four hundred sixty-four thousand, one hundred sixty-one".