20166022 has 8 divisors (see below), whose sum is σ = 30442176. Its totient is φ = 10018632.

The previous prime is 20166001. The next prime is 20166053. The reversal of 20166022 is 22066102.

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

It is a congruent number.

It is an unprimeable number.

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, 31798 + ... + 32425.

It is an arithmetic number, because the mean of its divisors is an integer number (3805272).

Almost surely, 2^20166022 is an apocalyptic number.

20166022 is a deficient number, since it is larger than the sum of its proper divisors (10276154).

20166022 is a wasteful number, since it uses less digits than its factorization.

20166022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64382.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20166022 is about 4490.6594170567. The cubic root of 20166022 is about 272.1907813072.

The spelling of 20166022 in words is "twenty million, one hundred sixty-six thousand, twenty-two".