16565741 has 2 divisors, whose sum is σ = 16565742. Its totient is φ = 16565740.

The previous prime is 16565729. The next prime is 16565767. The reversal of 16565741 is 14756561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16564900 + 841 = 4070^2 + 29^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16565741 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16565771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282870 + 8282871.

It is an arithmetic number, because the mean of its divisors is an integer number (8282871).

Almost surely, 2^16565741 is an apocalyptic number.

It is an amenable number.

16565741 is a deficient number, since it is larger than the sum of its proper divisors (1).

16565741 is an equidigital number, since it uses as much as digits as its factorization.

16565741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 16565741 is about 4070.1033156420. The cubic root of 16565741 is about 254.9198312641.

The spelling of 16565741 in words is "sixteen million, five hundred sixty-five thousand, seven hundred forty-one".