166052720 has 20 divisors (see below), whose sum is σ = 386072760. Its totient is φ = 66421056.

The previous prime is 166052717. The next prime is 166052743. The reversal of 166052720 is 27250661.

166052720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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, 1037750 + ... + 1037909.

It is an arithmetic number, because the mean of its divisors is an integer number (19303638).

Almost surely, 2^166052720 is an apocalyptic number.

166052720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166052720 is an abundant number, since it is smaller than the sum of its proper divisors (220020040).

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

166052720 is a wasteful number, since it uses less digits than its factorization.

166052720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075672 (or 2075666 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 166052720 is about 12886.1444970945. The cubic root of 166052720 is about 549.6446409728.

The spelling of 166052720 in words is "one hundred sixty-six million, fifty-two thousand, seven hundred twenty".