166106426 has 8 divisors (see below), whose sum is σ = 249218964. Its totient is φ = 83033440.

The previous prime is 166106411. The next prime is 166106441. The reversal of 166106426 is 624601661.

166106426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166106411) and next prime (166106441).

It can be written as a sum of positive squares in 2 ways, for example, as 139594225 + 26512201 = 11815^2 + 5149^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 166106392 and 166106401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5246 + ... + 18966.

Almost surely, 2^166106426 is an apocalyptic number.

166106426 is a deficient number, since it is larger than the sum of its proper divisors (83112538).

166106426 is a wasteful number, since it uses less digits than its factorization.

166106426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19776.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 166106426 is about 12888.2281947520. The cubic root of 166106426 is about 549.7038912985.

The spelling of 166106426 in words is "one hundred sixty-six million, one hundred six thousand, four hundred twenty-six".