201040000169 has 2 divisors, whose sum is σ = 201040000170. Its totient is φ = 201040000168.

The previous prime is 201040000157. The next prime is 201040000177. The reversal of 201040000169 is 961000040102.

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., 108768040000 + 92271960169 = 329800^2 + 303763^2 .

It is a cyclic number.

It is not a de Polignac number, because 201040000169 - 2⁴ = 201040000153 is a prime.

It is a super-2 number, since 2×201040000169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201040000669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100520000084 + 100520000085.

It is an arithmetic number, because the mean of its divisors is an integer number (100520000085).

Almost surely, 2^201040000169 is an apocalyptic number.

It is an amenable number.

201040000169 is a deficient number, since it is larger than the sum of its proper divisors (1).

201040000169 is an equidigital number, since it uses as much as digits as its factorization.

201040000169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 201040000169 in words is "two hundred one billion, forty million, one hundred sixty-nine", and thus it is an aban number.