164926829897 has 2 divisors, whose sum is σ = 164926829898. Its totient is φ = 164926829896.

The previous prime is 164926829867. The next prime is 164926829923. The reversal of 164926829897 is 798928629461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102692047936 + 62234781961 = 320456^2 + 249469^2 .

It is a cyclic number.

It is not a de Polignac number, because 164926829897 - 2¹² = 164926825801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164926829897.

It is not a weakly prime, because it can be changed into another prime (164926829807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82463414948 + 82463414949.

It is an arithmetic number, because the mean of its divisors is an integer number (82463414949).

Almost surely, 2^164926829897 is an apocalyptic number.

It is an amenable number.

164926829897 is a deficient number, since it is larger than the sum of its proper divisors (1).

164926829897 is an equidigital number, since it uses as much as digits as its factorization.

164926829897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188116992, while the sum is 71.

The spelling of 164926829897 in words is "one hundred sixty-four billion, nine hundred twenty-six million, eight hundred twenty-nine thousand, eight hundred ninety-seven".