166632443 has 2 divisors, whose sum is σ = 166632444. Its totient is φ = 166632442.

The previous prime is 166632391. The next prime is 166632449. The reversal of 166632443 is 344236661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166632443 - 2⁸ = 166632187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (166632449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83316221 + 83316222.

It is an arithmetic number, because the mean of its divisors is an integer number (83316222).

Almost surely, 2^166632443 is an apocalyptic number.

166632443 is a deficient number, since it is larger than the sum of its proper divisors (1).

166632443 is an equidigital number, since it uses as much as digits as its factorization.

166632443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 35.

The square root of 166632443 is about 12908.6189423966. The cubic root of 166632443 is about 550.2835375514.

The spelling of 166632443 in words is "one hundred sixty-six million, six hundred thirty-two thousand, four hundred forty-three".