166434101 has 2 divisors, whose sum is σ = 166434102. Its totient is φ = 166434100.

The previous prime is 166434089. The next prime is 166434109. The reversal of 166434101 is 101434661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164608900 + 1825201 = 12830^2 + 1351^2 .

It is an emirp because it is prime and its reverse (101434661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166434101 - 2²² = 162239797 is a prime.

It is equal to p_9314630 and since 166434101 and 9314630 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166434109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83217050 + 83217051.

It is an arithmetic number, because the mean of its divisors is an integer number (83217051).

Almost surely, 2^166434101 is an apocalyptic number.

It is an amenable number.

166434101 is a deficient number, since it is larger than the sum of its proper divisors (1).

166434101 is an equidigital number, since it uses as much as digits as its factorization.

166434101 is an evil number, because the sum of its binary digits is even.

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

The square root of 166434101 is about 12900.9341134664. The cubic root of 166434101 is about 550.0651173590.

Adding to 166434101 its reverse (101434661), we get a palindrome (267868762).

The spelling of 166434101 in words is "one hundred sixty-six million, four hundred thirty-four thousand, one hundred one".