164247022361 has 2 divisors, whose sum is σ = 164247022362. Its totient is φ = 164247022360.

The previous prime is 164247022351. The next prime is 164247022391. The reversal of 164247022361 is 163220742461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139264058761 + 24982963600 = 373181^2 + 158060^2 .

It is a cyclic number.

It is not a de Polignac number, because 164247022361 - 2⁶ = 164247022297 is a prime.

It is not a weakly prime, because it can be changed into another prime (164247022351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82123511180 + 82123511181.

It is an arithmetic number, because the mean of its divisors is an integer number (82123511181).

Almost surely, 2^164247022361 is an apocalyptic number.

It is an amenable number.

164247022361 is a deficient number, since it is larger than the sum of its proper divisors (1).

164247022361 is an equidigital number, since it uses as much as digits as its factorization.

164247022361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 164247022361 in words is "one hundred sixty-four billion, two hundred forty-seven million, twenty-two thousand, three hundred sixty-one".