20165086 has 8 divisors (see below), whose sum is σ = 30587760. Its totient is φ = 9969168.

The previous prime is 20165081. The next prime is 20165129. The reversal of 20165086 is 68056102.

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 (20165081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56466 + ... + 56821.

It is an arithmetic number, because the mean of its divisors is an integer number (3823470).

Almost surely, 2^20165086 is an apocalyptic number.

20165086 is a deficient number, since it is larger than the sum of its proper divisors (10422674).

20165086 is a wasteful number, since it uses less digits than its factorization.

20165086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113378.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 20165086 is about 4490.5551995271. Note that the first 3 decimals coincide. The cubic root of 20165086 is about 272.1865700236.

The spelling of 20165086 in words is "twenty million, one hundred sixty-five thousand, eighty-six".