166632203 has 2 divisors, whose sum is σ = 166632204. Its totient is φ = 166632202.

The previous prime is 166632199. The next prime is 166632229. The reversal of 166632203 is 302236661.

It is a weak prime.

It is an emirp because it is prime and its reverse (302236661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166632203 - 2² = 166632199 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166632233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83316101 + 83316102.

It is an arithmetic number, because the mean of its divisors is an integer number (83316102).

Almost surely, 2^166632203 is an apocalyptic number.

166632203 is a deficient number, since it is larger than the sum of its proper divisors (1).

166632203 is an equidigital number, since it uses as much as digits as its factorization.

166632203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 166632203 is about 12908.6096462787. The cubic root of 166632203 is about 550.2832733609.

Adding to 166632203 its reverse (302236661), we get a palindrome (468868864).

The spelling of 166632203 in words is "one hundred sixty-six million, six hundred thirty-two thousand, two hundred three".