166226929 has 8 divisors (see below), whose sum is σ = 187188480. Its totient is φ = 146240400.

The previous prime is 166226923. The next prime is 166226941. The reversal of 166226929 is 929622661.

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

It is a cyclic number.

It is not a de Polignac number, because 166226929 - 2¹¹ = 166224881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166226923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243394 + ... + 244075.

It is an arithmetic number, because the mean of its divisors is an integer number (23398560).

Almost surely, 2^166226929 is an apocalyptic number.

It is an amenable number.

166226929 is a deficient number, since it is larger than the sum of its proper divisors (20961551).

166226929 is a wasteful number, since it uses less digits than its factorization.

166226929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487511.

The product of its digits is 139968, while the sum is 43.

The square root of 166226929 is about 12892.9022721806. The cubic root of 166226929 is about 549.8367879354.

The spelling of 166226929 in words is "one hundred sixty-six million, two hundred twenty-six thousand, nine hundred twenty-nine".