166765530 has 32 divisors (see below), whose sum is σ = 404740800. Its totient is φ = 43970432.

The previous prime is 166765519. The next prime is 166765559. The reversal of 166765530 is 35567661.

166765530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28560 + ... + 33899.

It is an arithmetic number, because the mean of its divisors is an integer number (12648150).

Almost surely, 2^166765530 is an apocalyptic number.

166765530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166765530 is an abundant number, since it is smaller than the sum of its proper divisors (237975270).

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

166765530 is a wasteful number, since it uses less digits than its factorization.

166765530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62558.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 166765530 is about 12913.7728801462. The cubic root of 166765530 is about 550.4299998190.

The spelling of 166765530 in words is "one hundred sixty-six million, seven hundred sixty-five thousand, five hundred thirty".