16825052861 has 2 divisors, whose sum is σ = 16825052862. Its totient is φ = 16825052860.

The previous prime is 16825052819. The next prime is 16825052917.

16825052861 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13940288761 + 2884764100 = 118069^2 + 53710^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 16825052861 - 2¹⁴ = 16825036477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16825052801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8412526430 + 8412526431.

It is an arithmetic number, because the mean of its divisors is an integer number (8412526431).

Almost surely, 2^16825052861 is an apocalyptic number.

It is an amenable number.

16825052861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16825052861 is an equidigital number, since it uses as much as digits as its factorization.

16825052861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 16825052861 in words is "sixteen billion, eight hundred twenty-five million, fifty-two thousand, eight hundred sixty-one".