166571130 has 64 divisors (see below), whose sum is σ = 438068736. Its totient is φ = 40200000.

The previous prime is 166571113. The next prime is 166571131. The reversal of 166571130 is 31175661.

166571130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (166571131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81825 + ... + 83835.

It is an arithmetic number, because the mean of its divisors is an integer number (6844824).

Almost surely, 2^166571130 is an apocalyptic number.

166571130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166571130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219034368).

166571130 is an abundant number, since it is smaller than the sum of its proper divisors (271497606).

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

166571130 is a wasteful number, since it uses less digits than its factorization.

166571130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 166571130 is about 12906.2438377709. The cubic root of 166571130 is about 550.2160363434.

The spelling of 166571130 in words is "one hundred sixty-six million, five hundred seventy-one thousand, one hundred thirty".