166648396 has 12 divisors (see below), whose sum is σ = 295148952. Its totient is φ = 82320128.

The previous prime is 166648387. The next prime is 166648397. The reversal of 166648396 is 693846661.

It is not an unprimeable number, because it can be changed into a prime (166648397) 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, 250645 + ... + 251308.

It is an arithmetic number, because the mean of its divisors is an integer number (24595746).

Almost surely, 2^166648396 is an apocalyptic number.

It is an amenable number.

166648396 is a deficient number, since it is larger than the sum of its proper divisors (128500556).

166648396 is a wasteful number, since it uses less digits than its factorization.

166648396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502040 (or 502038 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 166648396 is about 12909.2368480867. The cubic root of 166648396 is about 550.3010979435.

The spelling of 166648396 in words is "one hundred sixty-six million, six hundred forty-eight thousand, three hundred ninety-six".