164652865320901 has 2 divisors, whose sum is σ = 164652865320902. Its totient is φ = 164652865320900.

The previous prime is 164652865320761. The next prime is 164652865320907. The reversal of 164652865320901 is 109023568256461.

It is a happy number.

164652865320901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158436370296801 + 6216495024100 = 12587151^2 + 2493290^2 .

It is a cyclic number.

It is not a de Polignac number, because 164652865320901 - 2⁹ = 164652865320389 is a prime.

It is a super-2 number, since 2×164652865320901² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164652865320907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82326432660450 + 82326432660451.

It is an arithmetic number, because the mean of its divisors is an integer number (82326432660451).

Almost surely, 2^{164652865320901} is an apocalyptic number.

It is an amenable number.

164652865320901 is a deficient number, since it is larger than the sum of its proper divisors (1).

164652865320901 is an equidigital number, since it uses as much as digits as its factorization.

164652865320901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 164652865320901 in words is "one hundred sixty-four trillion, six hundred fifty-two billion, eight hundred sixty-five million, three hundred twenty thousand, nine hundred one".