166674433 has 2 divisors, whose sum is σ = 166674434. Its totient is φ = 166674432.

The previous prime is 166674427. The next prime is 166674439. The reversal of 166674433 is 334476661.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (166674427) and next prime (166674439).

It can be written as a sum of positive squares in only one way, i.e., 165688384 + 986049 = 12872^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 166674433 - 2⁵ = 166674401 is a prime.

It is not a weakly prime, because it can be changed into another prime (166674439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83337216 + 83337217.

It is an arithmetic number, because the mean of its divisors is an integer number (83337217).

It is a Proth number, since it is equal to 10173 ⋅ 2¹⁴ + 1 and 10173 < 2¹⁴.

Almost surely, 2^166674433 is an apocalyptic number.

It is an amenable number.

166674433 is a deficient number, since it is larger than the sum of its proper divisors (1).

166674433 is an equidigital number, since it uses as much as digits as its factorization.

166674433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 166674433 is about 12910.2452726507. The cubic root of 166674433 is about 550.3297559722.

The spelling of 166674433 in words is "one hundred sixty-six million, six hundred seventy-four thousand, four hundred thirty-three".