164492769941 has 2 divisors, whose sum is σ = 164492769942. Its totient is φ = 164492769940.

The previous prime is 164492769863. The next prime is 164492769953. The reversal of 164492769941 is 149967294461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163693068100 + 799701841 = 404590^2 + 28279^2 .

It is a cyclic number.

It is not a de Polignac number, because 164492769941 - 2²⁶ = 164425661077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164492769241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82246384970 + 82246384971.

It is an arithmetic number, because the mean of its divisors is an integer number (82246384971).

Almost surely, 2^164492769941 is an apocalyptic number.

It is an amenable number.

164492769941 is a deficient number, since it is larger than the sum of its proper divisors (1).

164492769941 is an equidigital number, since it uses as much as digits as its factorization.

164492769941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 62.

The spelling of 164492769941 in words is "one hundred sixty-four billion, four hundred ninety-two million, seven hundred sixty-nine thousand, nine hundred forty-one".