166808396 has 12 divisors (see below), whose sum is σ = 301331520. Its totient is φ = 80713680.

The previous prime is 166808393. The next prime is 166808417. The reversal of 166808396 is 693808661.

166808396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166808396.

It is not an unprimeable number, because it can be changed into a prime (166808393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672491 + ... + 672738.

It is an arithmetic number, because the mean of its divisors is an integer number (25110960).

Almost surely, 2^166808396 is an apocalyptic number.

It is an amenable number.

166808396 is a deficient number, since it is larger than the sum of its proper divisors (134523124).

166808396 is a wasteful number, since it uses less digits than its factorization.

166808396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345264 (or 1345262 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 166808396 is about 12915.4324743696. The cubic root of 166808396 is about 550.4771572682.

The spelling of 166808396 in words is "one hundred sixty-six million, eight hundred eight thousand, three hundred ninety-six".