16395247441 has 2 divisors, whose sum is σ = 16395247442. Its totient is φ = 16395247440.

The previous prime is 16395247439. The next prime is 16395247471. The reversal of 16395247441 is 14474259361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15080822416 + 1314425025 = 122804^2 + 36255^2 .

It is a cyclic number.

It is not a de Polignac number, because 16395247441 - 2¹ = 16395247439 is a prime.

Together with 16395247439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16395247391 and 16395247400.

It is not a weakly prime, because it can be changed into another prime (16395247471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8197623720 + 8197623721.

It is an arithmetic number, because the mean of its divisors is an integer number (8197623721).

Almost surely, 2^16395247441 is an apocalyptic number.

It is an amenable number.

16395247441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16395247441 is an equidigital number, since it uses as much as digits as its factorization.

16395247441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The spelling of 16395247441 in words is "sixteen billion, three hundred ninety-five million, two hundred forty-seven thousand, four hundred forty-one".