166123336 has 8 divisors (see below), whose sum is σ = 311481270. Its totient is φ = 83061664.

The previous prime is 166123283. The next prime is 166123343. The reversal of 166123336 is 633321661.

It can be written as a sum of positive squares in only one way, i.e., 86378436 + 79744900 = 9294^2 + 8930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 166123298 and 166123307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10382701 + ... + 10382716.

Almost surely, 2^166123336 is an apocalyptic number.

It is an amenable number.

166123336 is a deficient number, since it is larger than the sum of its proper divisors (145357934).

166123336 is a wasteful number, since it uses less digits than its factorization.

166123336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20765423 (or 20765419 counting only the distinct ones).

The product of its digits is 11664, while the sum is 31.

The square root of 166123336 is about 12888.8842030643. The cubic root of 166123336 is about 549.7225443544.

Adding to 166123336 its reverse (633321661), we get a palindrome (799444997).

The spelling of 166123336 in words is "one hundred sixty-six million, one hundred twenty-three thousand, three hundred thirty-six".