166426235 has 8 divisors (see below), whose sum is σ = 200363856. Its totient is φ = 132706080.

The previous prime is 166426231. The next prime is 166426279. The reversal of 166426235 is 532624661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166426235 - 2² = 166426231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166426195 and 166426204.

It is not an unprimeable number, because it can be changed into a prime (166426231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52676 + ... + 55745.

It is an arithmetic number, because the mean of its divisors is an integer number (25045482).

Almost surely, 2^166426235 is an apocalyptic number.

166426235 is a deficient number, since it is larger than the sum of its proper divisors (33937621).

166426235 is a wasteful number, since it uses less digits than its factorization.

166426235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108733.

The product of its digits is 51840, while the sum is 35.

The square root of 166426235 is about 12900.6292482189. The cubic root of 166426235 is about 550.0564515059.

It can be divided in two parts, 166426 and 235, that added together give a palindrome (166661).

The spelling of 166426235 in words is "one hundred sixty-six million, four hundred twenty-six thousand, two hundred thirty-five".