166434089 has 2 divisors, whose sum is σ = 166434090. Its totient is φ = 166434088.

The previous prime is 166434083. The next prime is 166434101. The reversal of 166434089 is 980434661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165971689 + 462400 = 12883^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 166434089 - 2¹² = 166429993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166434083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83217044 + 83217045.

It is an arithmetic number, because the mean of its divisors is an integer number (83217045).

Almost surely, 2^166434089 is an apocalyptic number.

It is an amenable number.

166434089 is a deficient number, since it is larger than the sum of its proper divisors (1).

166434089 is an equidigital number, since it uses as much as digits as its factorization.

166434089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 166434089 is about 12900.9336483837. The cubic root of 166434089 is about 550.0651041390.

It can be divided in two parts, 1664 and 34089, that added together give a palindrome (35753).

The spelling of 166434089 in words is "one hundred sixty-six million, four hundred thirty-four thousand, eighty-nine".