20060816578065 has 32 divisors (see below), whose sum is σ = 35668679650560. Its totient is φ = 10697600454912.

The previous prime is 20060816577961. The next prime is 20060816578111. The reversal of 20060816578065 is 56087561806002.

20060816578065 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 0 + 8 + 1 + 6 + 578 + 0 + 65 = 666.

It is not a de Polignac number, because 20060816578065 - 2⁷ = 20060816577937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9462904 + ... + 11387193.

It is an arithmetic number, because the mean of its divisors is an integer number (1114646239080).

Almost surely, 2^{20060816578065} is an apocalyptic number.

It is an amenable number.

20060816578065 is a deficient number, since it is larger than the sum of its proper divisors (15607863072495).

20060816578065 is a wasteful number, since it uses less digits than its factorization.

20060816578065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20857238 (or 20857232 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 20060816578065 in words is "twenty trillion, sixty billion, eight hundred sixteen million, five hundred seventy-eight thousand, sixty-five".