164533719373 has 2 divisors, whose sum is σ = 164533719374. Its totient is φ = 164533719372.

The previous prime is 164533719331. The next prime is 164533719407. The reversal of 164533719373 is 373917335461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84185281609 + 80348437764 = 290147^2 + 283458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164533719373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164533719373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164533719073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82266859686 + 82266859687.

It is an arithmetic number, because the mean of its divisors is an integer number (82266859687).

Almost surely, 2^164533719373 is an apocalyptic number.

It is an amenable number.

164533719373 is a deficient number, since it is larger than the sum of its proper divisors (1).

164533719373 is an equidigital number, since it uses as much as digits as its factorization.

164533719373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 52.

The spelling of 164533719373 in words is "one hundred sixty-four billion, five hundred thirty-three million, seven hundred nineteen thousand, three hundred seventy-three".