20065871218 has 8 divisors (see below), whose sum is σ = 30153833712. Its totient is φ = 10014593316.

The previous prime is 20065871183. The next prime is 20065871311. The reversal of 20065871218 is 81217856002.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9169780 + ... + 9171967.

It is an arithmetic number, because the mean of its divisors is an integer number (3769229214).

Almost surely, 2^20065871218 is an apocalyptic number.

20065871218 is a deficient number, since it is larger than the sum of its proper divisors (10087962494).

20065871218 is a wasteful number, since it uses less digits than its factorization.

20065871218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18342296.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 20065871218 in words is "twenty billion, sixty-five million, eight hundred seventy-one thousand, two hundred eighteen".