16841620853 has 2 divisors, whose sum is σ = 16841620854. Its totient is φ = 16841620852.

The previous prime is 16841620823. The next prime is 16841620871. The reversal of 16841620853 is 35802614861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16749018724 + 92602129 = 129418^2 + 9623^2 .

It is a cyclic number.

It is not a de Polignac number, because 16841620853 - 2⁸ = 16841620597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16841620823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8420810426 + 8420810427.

It is an arithmetic number, because the mean of its divisors is an integer number (8420810427).

Almost surely, 2^16841620853 is an apocalyptic number.

It is an amenable number.

16841620853 is a deficient number, since it is larger than the sum of its proper divisors (1).

16841620853 is an equidigital number, since it uses as much as digits as its factorization.

16841620853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 16841620853 in words is "sixteen billion, eight hundred forty-one million, six hundred twenty thousand, eight hundred fifty-three".