164544046687 has 2 divisors, whose sum is σ = 164544046688. Its totient is φ = 164544046686.

The previous prime is 164544046651. The next prime is 164544046697. The reversal of 164544046687 is 786640445461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164544046687 - 2⁷ = 164544046559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164544046627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82272023343 + 82272023344.

It is an arithmetic number, because the mean of its divisors is an integer number (82272023344).

Almost surely, 2^164544046687 is an apocalyptic number.

164544046687 is a deficient number, since it is larger than the sum of its proper divisors (1).

164544046687 is an equidigital number, since it uses as much as digits as its factorization.

164544046687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 164544046687 in words is "one hundred sixty-four billion, five hundred forty-four million, forty-six thousand, six hundred eighty-seven".