164500493777 has 2 divisors, whose sum is σ = 164500493778. Its totient is φ = 164500493776.

The previous prime is 164500493741. The next prime is 164500493789. The reversal of 164500493777 is 777394005461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99850312081 + 64650181696 = 315991^2 + 254264^2 .

It is a cyclic number.

It is not a de Polignac number, because 164500493777 - 2⁶ = 164500493713 is a prime.

It is not a weakly prime, because it can be changed into another prime (164500493477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82250246888 + 82250246889.

It is an arithmetic number, because the mean of its divisors is an integer number (82250246889).

Almost surely, 2^164500493777 is an apocalyptic number.

It is an amenable number.

164500493777 is a deficient number, since it is larger than the sum of its proper divisors (1).

164500493777 is an equidigital number, since it uses as much as digits as its factorization.

164500493777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 164500493777 in words is "one hundred sixty-four billion, five hundred million, four hundred ninety-three thousand, seven hundred seventy-seven".