166611344 has 20 divisors (see below), whose sum is σ = 323074560. Its totient is φ = 83237280.

The previous prime is 166611307. The next prime is 166611349. The reversal of 166611344 is 443116661.

It is a self number, because there is not a number n which added to its sum of digits gives 166611344.

It is not an unprimeable number, because it can be changed into a prime (166611349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19997 + ... + 27075.

It is an arithmetic number, because the mean of its divisors is an integer number (16153728).

Almost surely, 2^166611344 is an apocalyptic number.

It is an amenable number.

166611344 is a deficient number, since it is larger than the sum of its proper divisors (156463216).

166611344 is a wasteful number, since it uses less digits than its factorization.

166611344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558 (or 8552 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 166611344 is about 12907.8016718572. The cubic root of 166611344 is about 550.2603109371.

The spelling of 166611344 in words is "one hundred sixty-six million, six hundred eleven thousand, three hundred forty-four".