164000650544669 has 2 divisors, whose sum is σ = 164000650544670. Its totient is φ = 164000650544668.

The previous prime is 164000650544531. The next prime is 164000650544681. The reversal of 164000650544669 is 966445056000461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146882886225625 + 17117764319044 = 12119525^2 + 4137362^2 .

It is an emirp because it is prime and its reverse (966445056000461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164000650544669 is a prime.

It is a super-2 number, since 2×164000650544669² (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 (164000650544699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82000325272334 + 82000325272335.

It is an arithmetic number, because the mean of its divisors is an integer number (82000325272335).

Almost surely, 2^{164000650544669} is an apocalyptic number.

It is an amenable number.

164000650544669 is a deficient number, since it is larger than the sum of its proper divisors (1).

164000650544669 is an equidigital number, since it uses as much as digits as its factorization.

164000650544669 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 56.

The spelling of 164000650544669 in words is "one hundred sixty-four trillion, six hundred fifty million, five hundred forty-four thousand, six hundred sixty-nine".