164723393033 has 2 divisors, whose sum is σ = 164723393034. Its totient is φ = 164723393032.

The previous prime is 164723392907. The next prime is 164723393063. The reversal of 164723393033 is 330393327461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115629241849 + 49094151184 = 340043^2 + 221572^2 .

It is a cyclic number.

It is not a de Polignac number, because 164723393033 - 2⁸ = 164723392777 is a prime.

It is not a weakly prime, because it can be changed into another prime (164723393063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82361696516 + 82361696517.

It is an arithmetic number, because the mean of its divisors is an integer number (82361696517).

Almost surely, 2^164723393033 is an apocalyptic number.

It is an amenable number.

164723393033 is a deficient number, since it is larger than the sum of its proper divisors (1).

164723393033 is an equidigital number, since it uses as much as digits as its factorization.

164723393033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 44.

The spelling of 164723393033 in words is "one hundred sixty-four billion, seven hundred twenty-three million, three hundred ninety-three thousand, thirty-three".