20065871938 has 16 divisors (see below), whose sum is σ = 34407976320. Its totient is φ = 8597324736.

The previous prime is 20065871929. The next prime is 20065871971. The reversal of 20065871938 is 83917856002.

It is a junction number, because it is equal to n+sod(n) for n = 20065871891 and 20065871900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140631 + ... + 244762.

It is an arithmetic number, because the mean of its divisors is an integer number (2150498520).

Almost surely, 2^20065871938 is an apocalyptic number.

20065871938 is a deficient number, since it is larger than the sum of its proper divisors (14342104382).

20065871938 is a wasteful number, since it uses less digits than its factorization.

20065871938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389121.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 20065871938 in words is "twenty billion, sixty-five million, eight hundred seventy-one thousand, nine hundred thirty-eight".