164295032569 has 2 divisors, whose sum is σ = 164295032570. Its totient is φ = 164295032568.

The previous prime is 164295032519. The next prime is 164295032729. The reversal of 164295032569 is 965230592461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131899712400 + 32395320169 = 363180^2 + 179987^2 .

It is a cyclic number.

It is not a de Polignac number, because 164295032569 - 2¹¹ = 164295030521 is a prime.

It is a super-2 number, since 2×164295032569² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164295032519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82147516284 + 82147516285.

It is an arithmetic number, because the mean of its divisors is an integer number (82147516285).

Almost surely, 2^164295032569 is an apocalyptic number.

It is an amenable number.

164295032569 is a deficient number, since it is larger than the sum of its proper divisors (1).

164295032569 is an equidigital number, since it uses as much as digits as its factorization.

164295032569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 164295032569 in words is "one hundred sixty-four billion, two hundred ninety-five million, thirty-two thousand, five hundred sixty-nine".