166034417 has 2 divisors, whose sum is σ = 166034418. Its totient is φ = 166034416.

The previous prime is 166034413. The next prime is 166034431. The reversal of 166034417 is 714430661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125978176 + 40056241 = 11224^2 + 6329^2 .

It is a cyclic number.

It is not a de Polignac number, because 166034417 - 2² = 166034413 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166034413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83017208 + 83017209.

It is an arithmetic number, because the mean of its divisors is an integer number (83017209).

Almost surely, 2^166034417 is an apocalyptic number.

It is an amenable number.

166034417 is a deficient number, since it is larger than the sum of its proper divisors (1).

166034417 is an equidigital number, since it uses as much as digits as its factorization.

166034417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 166034417 is about 12885.4342961345. The cubic root of 166034417 is about 549.6244455483.

The spelling of 166034417 in words is "one hundred sixty-six million, thirty-four thousand, four hundred seventeen".