20166854 has 8 divisors (see below), whose sum is σ = 30894048. Its totient is φ = 9868840.

The previous prime is 20166851. The next prime is 20166877. The reversal of 20166854 is 45866102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20166854.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20166851) 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, 107177 + ... + 107364.

It is an arithmetic number, because the mean of its divisors is an integer number (3861756).

Almost surely, 2^20166854 is an apocalyptic number.

20166854 is a deficient number, since it is larger than the sum of its proper divisors (10727194).

20166854 is a wasteful number, since it uses less digits than its factorization.

20166854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214590.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 20166854 is about 4490.7520528303. The cubic root of 20166854 is about 272.1945245610.

The spelling of 20166854 in words is "twenty million, one hundred sixty-six thousand, eight hundred fifty-four".