20016668336 has 20 divisors (see below), whose sum is σ = 44322622992. Its totient is φ = 8578572096.

The previous prime is 20016668317. The next prime is 20016668363. The reversal of 20016668336 is 63386661002.

It is a super-2 number, since 2×20016668336² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20016668293 and 20016668302.

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, 89360015 + ... + 89360238.

Almost surely, 2^20016668336 is an apocalyptic number.

It is an amenable number.

20016668336 is an abundant number, since it is smaller than the sum of its proper divisors (24305954656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20016668336 is a wasteful number, since it uses less digits than its factorization.

20016668336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178720268 (or 178720262 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 20016668336 in words is "twenty billion, sixteen million, six hundred sixty-eight thousand, three hundred thirty-six".