16204505269 has 2 divisors, whose sum is σ = 16204505270. Its totient is φ = 16204505268.

The previous prime is 16204505227. The next prime is 16204505327. The reversal of 16204505269 is 96250540261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15740964369 + 463540900 = 125463^2 + 21530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16204505269 is a prime.

It is a super-2 number, since 2×16204505269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16204505209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8102252634 + 8102252635.

It is an arithmetic number, because the mean of its divisors is an integer number (8102252635).

Almost surely, 2^16204505269 is an apocalyptic number.

It is an amenable number.

16204505269 is a deficient number, since it is larger than the sum of its proper divisors (1).

16204505269 is an equidigital number, since it uses as much as digits as its factorization.

16204505269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 16204505269 in words is "sixteen billion, two hundred four million, five hundred five thousand, two hundred sixty-nine".