166374463 has 2 divisors, whose sum is σ = 166374464. Its totient is φ = 166374462.

The previous prime is 166374449. The next prime is 166374487. The reversal of 166374463 is 364473661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166374463 - 2¹³ = 166366271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166374763) 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, 83187231 + 83187232.

It is an arithmetic number, because the mean of its divisors is an integer number (83187232).

Almost surely, 2^166374463 is an apocalyptic number.

166374463 is a deficient number, since it is larger than the sum of its proper divisors (1).

166374463 is an equidigital number, since it uses as much as digits as its factorization.

166374463 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 166374463 is about 12898.6225233550. The cubic root of 166374463 is about 549.9994082638. Note that the first 3 decimals are identical.

The spelling of 166374463 in words is "one hundred sixty-six million, three hundred seventy-four thousand, four hundred sixty-three".