164523560533 has 2 divisors, whose sum is σ = 164523560534. Its totient is φ = 164523560532.

The previous prime is 164523560527. The next prime is 164523560567. The reversal of 164523560533 is 335065325461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163330756164 + 1192804369 = 404142^2 + 34537^2 .

It is an emirp because it is prime and its reverse (335065325461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164523560533 - 2⁵ = 164523560501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164523560533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164523560503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82261780266 + 82261780267.

It is an arithmetic number, because the mean of its divisors is an integer number (82261780267).

Almost surely, 2^164523560533 is an apocalyptic number.

It is an amenable number.

164523560533 is a deficient number, since it is larger than the sum of its proper divisors (1).

164523560533 is an equidigital number, since it uses as much as digits as its factorization.

164523560533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 43.

Adding to 164523560533 its reverse (335065325461), we get a palindrome (499588885994).

The spelling of 164523560533 in words is "one hundred sixty-four billion, five hundred twenty-three million, five hundred sixty thousand, five hundred thirty-three".