164647254241 has 2 divisors, whose sum is σ = 164647254242. Its totient is φ = 164647254240.

The previous prime is 164647254203. The next prime is 164647254287. The reversal of 164647254241 is 142452746461.

It is an a-pointer prime, because the next prime (164647254287) can be obtained adding 164647254241 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139131984016 + 25515270225 = 373004^2 + 159735^2 .

It is a cyclic number.

It is not a de Polignac number, because 164647254241 - 2⁷ = 164647254113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164647254191 and 164647254200.

It is not a weakly prime, because it can be changed into another prime (164647254641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82323627120 + 82323627121.

It is an arithmetic number, because the mean of its divisors is an integer number (82323627121).

Almost surely, 2^164647254241 is an apocalyptic number.

It is an amenable number.

164647254241 is a deficient number, since it is larger than the sum of its proper divisors (1).

164647254241 is an equidigital number, since it uses as much as digits as its factorization.

164647254241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 46.

The spelling of 164647254241 in words is "one hundred sixty-four billion, six hundred forty-seven million, two hundred fifty-four thousand, two hundred forty-one".