164654676617 has 2 divisors, whose sum is σ = 164654676618. Its totient is φ = 164654676616.

The previous prime is 164654676581. The next prime is 164654676649. The reversal of 164654676617 is 716676456461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152489469001 + 12165207616 = 390499^2 + 110296^2 .

It is a cyclic number.

It is not a de Polignac number, because 164654676617 - 2¹⁰ = 164654675593 is a prime.

It is a super-2 number, since 2×164654676617² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164654676677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82327338308 + 82327338309.

It is an arithmetic number, because the mean of its divisors is an integer number (82327338309).

Almost surely, 2^164654676617 is an apocalyptic number.

It is an amenable number.

164654676617 is a deficient number, since it is larger than the sum of its proper divisors (1).

164654676617 is an equidigital number, since it uses as much as digits as its factorization.

164654676617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 59.

The spelling of 164654676617 in words is "one hundred sixty-four billion, six hundred fifty-four million, six hundred seventy-six thousand, six hundred seventeen".