16571065013 has 2 divisors, whose sum is σ = 16571065014. Its totient is φ = 16571065012.

The previous prime is 16571065003. The next prime is 16571065033. The reversal of 16571065013 is 31056017561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16239169489 + 331895524 = 127433^2 + 18218^2 .

It is a cyclic number.

It is not a de Polignac number, because 16571065013 - 2¹² = 16571060917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16571065003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8285532506 + 8285532507.

It is an arithmetic number, because the mean of its divisors is an integer number (8285532507).

Almost surely, 2^16571065013 is an apocalyptic number.

It is an amenable number.

16571065013 is a deficient number, since it is larger than the sum of its proper divisors (1).

16571065013 is an equidigital number, since it uses as much as digits as its factorization.

16571065013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 35.

The spelling of 16571065013 in words is "sixteen billion, five hundred seventy-one million, sixty-five thousand, thirteen".