20066317370851 has 4 divisors (see below), whose sum is σ = 20073973351104. Its totient is φ = 20058661390600.

The previous prime is 20066317370837. The next prime is 20066317370873. The reversal of 20066317370851 is 15807371366002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20066317370851 - 2²⁹ = 20065780499939 is a prime.

It is a super-3 number, since 3×20066317370851³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20066317370795 and 20066317370804.

It is not an unprimeable number, because it can be changed into a prime (20066317370251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3827986195 + ... + 3827991436.

It is an arithmetic number, because the mean of its divisors is an integer number (5018493337776).

Almost surely, 2^{20066317370851} is an apocalyptic number.

20066317370851 is a deficient number, since it is larger than the sum of its proper divisors (7655980253).

20066317370851 is an equidigital number, since it uses as much as digits as its factorization.

20066317370851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655980252.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 20066317370851 in words is "twenty trillion, sixty-six billion, three hundred seventeen million, three hundred seventy thousand, eight hundred fifty-one".