164216541943 has 2 divisors, whose sum is σ = 164216541944. Its totient is φ = 164216541942.

The previous prime is 164216541901. The next prime is 164216541989. The reversal of 164216541943 is 349145612461.

164216541943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (164216541989) can be obtained adding 164216541943 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164216541943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164216541893 and 164216541902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164216541043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82108270971 + 82108270972.

It is an arithmetic number, because the mean of its divisors is an integer number (82108270972).

Almost surely, 2^164216541943 is an apocalyptic number.

164216541943 is a deficient number, since it is larger than the sum of its proper divisors (1).

164216541943 is an equidigital number, since it uses as much as digits as its factorization.

164216541943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The spelling of 164216541943 in words is "one hundred sixty-four billion, two hundred sixteen million, five hundred forty-one thousand, nine hundred forty-three".