16364868140441 has 2 divisors, whose sum is σ = 16364868140442. Its totient is φ = 16364868140440.

The previous prime is 16364868140333. The next prime is 16364868140459. The reversal of 16364868140441 is 14404186846361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10786107576841 + 5578760563600 = 3284221^2 + 2361940^2 .

It is a cyclic number.

It is not a de Polignac number, because 16364868140441 - 2¹⁸ = 16364867878297 is a prime.

It is not a weakly prime, because it can be changed into another prime (16364868140471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8182434070220 + 8182434070221.

It is an arithmetic number, because the mean of its divisors is an integer number (8182434070221).

Almost surely, 2^{16364868140441} is an apocalyptic number.

It is an amenable number.

16364868140441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16364868140441 is an equidigital number, since it uses as much as digits as its factorization.

16364868140441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 16364868140441 in words is "sixteen trillion, three hundred sixty-four billion, eight hundred sixty-eight million, one hundred forty thousand, four hundred forty-one".