165632256029 has 2 divisors, whose sum is σ = 165632256030. Its totient is φ = 165632256028.

The previous prime is 165632255993. The next prime is 165632256037. The reversal of 165632256029 is 920652236561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84973416004 + 80658840025 = 291502^2 + 284005^2 .

It is a cyclic number.

It is not a de Polignac number, because 165632256029 - 2²⁰ = 165631207453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165632256329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82816128014 + 82816128015.

It is an arithmetic number, because the mean of its divisors is an integer number (82816128015).

Almost surely, 2^165632256029 is an apocalyptic number.

It is an amenable number.

165632256029 is a deficient number, since it is larger than the sum of its proper divisors (1).

165632256029 is an equidigital number, since it uses as much as digits as its factorization.

165632256029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 165632256029 in words is "one hundred sixty-five billion, six hundred thirty-two million, two hundred fifty-six thousand, twenty-nine".