16105565653 has 2 divisors, whose sum is σ = 16105565654. Its totient is φ = 16105565652.

The previous prime is 16105565573. The next prime is 16105565699. The reversal of 16105565653 is 35656550161.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10123780689 + 5981784964 = 100617^2 + 77342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16105565653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16105565353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8052782826 + 8052782827.

It is an arithmetic number, because the mean of its divisors is an integer number (8052782827).

Almost surely, 2^16105565653 is an apocalyptic number.

It is an amenable number.

16105565653 is a deficient number, since it is larger than the sum of its proper divisors (1).

16105565653 is an equidigital number, since it uses as much as digits as its factorization.

16105565653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 16105565653 in words is "sixteen billion, one hundred five million, five hundred sixty-five thousand, six hundred fifty-three".