164505146424851 has 2 divisors, whose sum is σ = 164505146424852. Its totient is φ = 164505146424850.

The previous prime is 164505146424617. The next prime is 164505146424859. The reversal of 164505146424851 is 158424641505461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164505146424851 - 2²² = 164505142230547 is a prime.

It is not a weakly prime, because it can be changed into another prime (164505146424859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82252573212425 + 82252573212426.

It is an arithmetic number, because the mean of its divisors is an integer number (82252573212426).

Almost surely, 2^{164505146424851} is an apocalyptic number.

164505146424851 is a deficient number, since it is larger than the sum of its proper divisors (1).

164505146424851 is an equidigital number, since it uses as much as digits as its factorization.

164505146424851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432000, while the sum is 56.

The spelling of 164505146424851 in words is "one hundred sixty-four trillion, five hundred five billion, one hundred forty-six million, four hundred twenty-four thousand, eight hundred fifty-one".