164451433024243 has 2 divisors, whose sum is σ = 164451433024244. Its totient is φ = 164451433024242.

The previous prime is 164451433024189. The next prime is 164451433024289. The reversal of 164451433024243 is 342420334154461.

It is an a-pointer prime, because the next prime (164451433024289) can be obtained adding 164451433024243 to its sum of digits (46).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164451433024243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164451433024193 and 164451433024202.

It is not a weakly prime, because it can be changed into another prime (164451433024343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82225716512121 + 82225716512122.

It is an arithmetic number, because the mean of its divisors is an integer number (82225716512122).

Almost surely, 2^{164451433024243} is an apocalyptic number.

164451433024243 is a deficient number, since it is larger than the sum of its proper divisors (1).

164451433024243 is an equidigital number, since it uses as much as digits as its factorization.

164451433024243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 46.

The spelling of 164451433024243 in words is "one hundred sixty-four trillion, four hundred fifty-one billion, four hundred thirty-three million, twenty-four thousand, two hundred forty-three".