166232623 has 2 divisors, whose sum is σ = 166232624. Its totient is φ = 166232622.

The previous prime is 166232609. The next prime is 166232641. The reversal of 166232623 is 326232661.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (326232661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166232623 - 2⁹ = 166232111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166232603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83116311 + 83116312.

It is an arithmetic number, because the mean of its divisors is an integer number (83116312).

Almost surely, 2^166232623 is an apocalyptic number.

166232623 is a deficient number, since it is larger than the sum of its proper divisors (1).

166232623 is an equidigital number, since it uses as much as digits as its factorization.

166232623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 31.

The square root of 166232623 is about 12893.1230894613. The cubic root of 166232623 is about 549.8430659694.

The spelling of 166232623 in words is "one hundred sixty-six million, two hundred thirty-two thousand, six hundred twenty-three".