166196383 has 2 divisors, whose sum is σ = 166196384. Its totient is φ = 166196382.

The previous prime is 166196377. The next prime is 166196389. The reversal of 166196383 is 383691661.

It is a balanced prime because it is at equal distance from previous prime (166196377) and next prime (166196389).

It is a cyclic number.

It is not a de Polignac number, because 166196383 - 2⁵ = 166196351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166196389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83098191 + 83098192.

It is an arithmetic number, because the mean of its divisors is an integer number (83098192).

Almost surely, 2^166196383 is an apocalyptic number.

166196383 is a deficient number, since it is larger than the sum of its proper divisors (1).

166196383 is an equidigital number, since it uses as much as digits as its factorization.

166196383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 166196383 is about 12891.7176124828. The cubic root of 166196383 is about 549.8031063823.

The spelling of 166196383 in words is "one hundred sixty-six million, one hundred ninety-six thousand, three hundred eighty-three".