16441023635261 has 2 divisors, whose sum is σ = 16441023635262. Its totient is φ = 16441023635260.

The previous prime is 16441023635251. The next prime is 16441023635347. The reversal of 16441023635261 is 16253632014461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8315639179225 + 8125384456036 = 2883685^2 + 2850506^2 .

It is a cyclic number.

It is not a de Polignac number, because 16441023635261 - 2¹⁰ = 16441023634237 is a prime.

It is a super-4 number, since 4×16441023635261⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16441023635221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220511817630 + 8220511817631.

It is an arithmetic number, because the mean of its divisors is an integer number (8220511817631).

Almost surely, 2^{16441023635261} is an apocalyptic number.

It is an amenable number.

16441023635261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16441023635261 is an equidigital number, since it uses as much as digits as its factorization.

16441023635261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 16441023635261 in words is "sixteen trillion, four hundred forty-one billion, twenty-three million, six hundred thirty-five thousand, two hundred sixty-one".