201053567669 has 2 divisors, whose sum is σ = 201053567670. Its totient is φ = 201053567668.

The previous prime is 201053567641. The next prime is 201053567677. The reversal of 201053567669 is 966765350102.

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., 198682364644 + 2371203025 = 445738^2 + 48695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201053567669 is a prime.

It is a super-2 number, since 2×201053567669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201053567569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100526783834 + 100526783835.

It is an arithmetic number, because the mean of its divisors is an integer number (100526783835).

Almost surely, 2^201053567669 is an apocalyptic number.

It is an amenable number.

201053567669 is a deficient number, since it is larger than the sum of its proper divisors (1).

201053567669 is an equidigital number, since it uses as much as digits as its factorization.

201053567669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 201053567669 in words is "two hundred one billion, fifty-three million, five hundred sixty-seven thousand, six hundred sixty-nine".