166130441 has 2 divisors, whose sum is σ = 166130442. Its totient is φ = 166130440.

The previous prime is 166130429. The next prime is 166130467. The reversal of 166130441 is 144031661.

It is an a-pointer prime, because the next prime (166130467) can be obtained adding 166130441 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165765625 + 364816 = 12875^2 + 604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166130441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166130441.

It is not a weakly prime, because it can be changed into another prime (166130411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83065220 + 83065221.

It is an arithmetic number, because the mean of its divisors is an integer number (83065221).

Almost surely, 2^166130441 is an apocalyptic number.

It is an amenable number.

166130441 is a deficient number, since it is larger than the sum of its proper divisors (1).

166130441 is an equidigital number, since it uses as much as digits as its factorization.

166130441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 166130441 is about 12889.1598252175. The cubic root of 166130441 is about 549.7303813489.

The spelling of 166130441 in words is "one hundred sixty-six million, one hundred thirty thousand, four hundred forty-one".