7166705128 has 48 divisors (see below), whose sum is σ = 14794345440. Its totient is φ = 3252274080.

The previous prime is 7166705107. The next prime is 7166705129. The reversal of 7166705128 is 8215076617.

It is not an unprimeable number, because it can be changed into a prime (7166705129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620575 + ... + 632017.

It is an arithmetic number, because the mean of its divisors is an integer number (308215530).

Almost surely, 2^7166705128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7166705128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7397172720).

7166705128 is an abundant number, since it is smaller than the sum of its proper divisors (7627640312).

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

7166705128 is a wasteful number, since it uses less digits than its factorization.

7166705128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118 (or 12103 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 7166705128 is about 84656.3944897253. The cubic root of 7166705128 is about 1927.9977022005.

The spelling of 7166705128 in words is "seven billion, one hundred sixty-six million, seven hundred five thousand, one hundred twenty-eight".