166827742 has 8 divisors (see below), whose sum is σ = 250311600. Its totient is φ = 83390544.

The previous prime is 166827673. The next prime is 166827743. The reversal of 166827742 is 247728661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166827743) 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 3 ways as a sum of consecutive naturals, for example, 642 + ... + 18277.

It is an arithmetic number, because the mean of its divisors is an integer number (31288950).

Almost surely, 2^166827742 is an apocalyptic number.

166827742 is a deficient number, since it is larger than the sum of its proper divisors (83483858).

166827742 is a wasteful number, since it uses less digits than its factorization.

166827742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23330.

The product of its digits is 225792, while the sum is 43.

The square root of 166827742 is about 12916.1814016373. The cubic root of 166827742 is about 550.4984374109.

The spelling of 166827742 in words is "one hundred sixty-six million, eight hundred twenty-seven thousand, seven hundred forty-two".