166761330 has 32 divisors (see below), whose sum is σ = 423771264. Its totient is φ = 41853696.

The previous prime is 166761277. The next prime is 166761341. The reversal of 166761330 is 33167661.

166761330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166761291 and 166761300.

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, 162982 + ... + 164001.

It is an arithmetic number, because the mean of its divisors is an integer number (13242852).

Almost surely, 2^166761330 is an apocalyptic number.

166761330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166761330 is an abundant number, since it is smaller than the sum of its proper divisors (257009934).

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

166761330 is a wasteful number, since it uses less digits than its factorization.

166761330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327010.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 166761330 is about 12913.6102620452. The cubic root of 166761330 is about 550.4253789092.

The spelling of 166761330 in words is "one hundred sixty-six million, seven hundred sixty-one thousand, three hundred thirty".