164166642 has 32 divisors (see below), whose sum is σ = 366672000. Its totient is φ = 54443664.

The previous prime is 164166581. The next prime is 164166659. The reversal of 164166642 is 246661461.

It is a junction number, because it is equal to n+sod(n) for n = 164166597 and 164166606.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3108 + ... + 18384.

It is an arithmetic number, because the mean of its divisors is an integer number (11458500).

Almost surely, 2^164166642 is an apocalyptic number.

164166642 is an abundant number, since it is smaller than the sum of its proper divisors (202505358).

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

164166642 is a wasteful number, since it uses less digits than its factorization.

164166642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487 (or 15481 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 164166642 is about 12812.7530999391. The cubic root of 164166642 is about 547.5557008445. Note that the first 3 decimals are identical.

The spelling of 164166642 in words is "one hundred sixty-four million, one hundred sixty-six thousand, six hundred forty-two".