16501605053 has 2 divisors, whose sum is σ = 16501605054. Its totient is φ = 16501605052.

The previous prime is 16501605041. The next prime is 16501605187. The reversal of 16501605053 is 35050610561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14520732004 + 1980873049 = 120502^2 + 44507^2 .

It is a cyclic number.

It is not a de Polignac number, because 16501605053 - 2¹⁰ = 16501604029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16501607053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250802526 + 8250802527.

It is an arithmetic number, because the mean of its divisors is an integer number (8250802527).

Almost surely, 2^16501605053 is an apocalyptic number.

It is an amenable number.

16501605053 is a deficient number, since it is larger than the sum of its proper divisors (1).

16501605053 is an equidigital number, since it uses as much as digits as its factorization.

16501605053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 16501605053 in words is "sixteen billion, five hundred one million, six hundred five thousand, fifty-three".