320165146264543 has 2 divisors, whose sum is σ = 320165146264544. Its totient is φ = 320165146264542.

The previous prime is 320165146264501. The next prime is 320165146264553. The reversal of 320165146264543 is 345462641561023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320165146264543 - 2⁴⁵ = 284980774175711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320165146264553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160082573132271 + 160082573132272.

It is an arithmetic number, because the mean of its divisors is an integer number (160082573132272).

Almost surely, 2^{320165146264543} is an apocalyptic number.

320165146264543 is a deficient number, since it is larger than the sum of its proper divisors (1).

320165146264543 is an equidigital number, since it uses as much as digits as its factorization.

320165146264543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 320165146264543 in words is "three hundred twenty trillion, one hundred sixty-five billion, one hundred forty-six million, two hundred sixty-four thousand, five hundred forty-three".