16220356441 has 2 divisors, whose sum is σ = 16220356442. Its totient is φ = 16220356440.

The previous prime is 16220356379. The next prime is 16220356483. The reversal of 16220356441 is 14465302261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13088275216 + 3132081225 = 114404^2 + 55965^2 .

It is a cyclic number.

It is not a de Polignac number, because 16220356441 - 2¹⁷ = 16220225369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16220356397 and 16220356406.

It is not a weakly prime, because it can be changed into another prime (16220336441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8110178220 + 8110178221.

It is an arithmetic number, because the mean of its divisors is an integer number (8110178221).

Almost surely, 2^16220356441 is an apocalyptic number.

It is an amenable number.

16220356441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16220356441 is an equidigital number, since it uses as much as digits as its factorization.

16220356441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 16220356441 in words is "sixteen billion, two hundred twenty million, three hundred fifty-six thousand, four hundred forty-one".