16456312441 has 2 divisors, whose sum is σ = 16456312442. Its totient is φ = 16456312440.

The previous prime is 16456312417. The next prime is 16456312493. The reversal of 16456312441 is 14421365461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16266451600 + 189860841 = 127540^2 + 13779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16456312441 is a prime.

It is a super-2 number, since 2×16456312441² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16456312441.

It is not a weakly prime, because it can be changed into another prime (16456312541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228156220 + 8228156221.

It is an arithmetic number, because the mean of its divisors is an integer number (8228156221).

Almost surely, 2^16456312441 is an apocalyptic number.

It is an amenable number.

16456312441 is a deficient number, since it is larger than the sum of its proper divisors (1).

16456312441 is an equidigital number, since it uses as much as digits as its factorization.

16456312441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The spelling of 16456312441 in words is "sixteen billion, four hundred fifty-six million, three hundred twelve thousand, four hundred forty-one".