166326361 has 8 divisors (see below), whose sum is σ = 177694880. Its totient is φ = 155219328.

The previous prime is 166326353. The next prime is 166326383. The reversal of 166326361 is 163623661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166326361 - 2³ = 166326353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166326301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64056 + ... + 66601.

It is an arithmetic number, because the mean of its divisors is an integer number (22211860).

Almost surely, 2^166326361 is an apocalyptic number.

It is an amenable number.

166326361 is a deficient number, since it is larger than the sum of its proper divisors (11368519).

166326361 is a wasteful number, since it uses less digits than its factorization.

166326361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130743.

The product of its digits is 23328, while the sum is 34.

The square root of 166326361 is about 12896.7577708508. The cubic root of 166326361 is about 549.9463980820.

The spelling of 166326361 in words is "one hundred sixty-six million, three hundred twenty-six thousand, three hundred sixty-one".