166182393029 has 2 divisors, whose sum is σ = 166182393030. Its totient is φ = 166182393028.

The previous prime is 166182393023. The next prime is 166182393031. The reversal of 166182393029 is 920393281661.

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., 165000064804 + 1182328225 = 406202^2 + 34385^2 .

It is a cyclic number.

It is not a de Polignac number, because 166182393029 - 2²⁰ = 166181344453 is a prime.

Together with 166182393031, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166182393023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83091196514 + 83091196515.

It is an arithmetic number, because the mean of its divisors is an integer number (83091196515).

Almost surely, 2^166182393029 is an apocalyptic number.

It is an amenable number.

166182393029 is a deficient number, since it is larger than the sum of its proper divisors (1).

166182393029 is an equidigital number, since it uses as much as digits as its factorization.

166182393029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 166182393029 in words is "one hundred sixty-six billion, one hundred eighty-two million, three hundred ninety-three thousand, twenty-nine".