166648128 has 28 divisors (see below), whose sum is σ = 440923680. Its totient is φ = 55549312.

The previous prime is 166648117. The next prime is 166648189. The reversal of 166648128 is 821846661.

166648128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 166648128.

It is a congruent number.

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, 433788 + ... + 434171.

Almost surely, 2^166648128 is an apocalyptic number.

It is an amenable number.

166648128 is an abundant number, since it is smaller than the sum of its proper divisors (274275552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166648128 is an equidigital number, since it uses as much as digits as its factorization.

166648128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867974 (or 867964 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 166648128 is about 12909.2264679182. The cubic root of 166648128 is about 550.3008029496.

It can be divided in two parts, 1666 and 48128, that added together give a palindrome (49794).

The spelling of 166648128 in words is "one hundred sixty-six million, six hundred forty-eight thousand, one hundred twenty-eight".