20116905384 has 32 divisors (see below), whose sum is σ = 50302343520. Its totient is φ = 6704291136.

The previous prime is 20116905377. The next prime is 20116905401. The reversal of 20116905384 is 48350961102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42102 + ... + 204954.

It is an arithmetic number, because the mean of its divisors is an integer number (1571948235).

Almost surely, 2^20116905384 is an apocalyptic number.

20116905384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20116905384 is an abundant number, since it is smaller than the sum of its proper divisors (30185438136).

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

20116905384 is a wasteful number, since it uses less digits than its factorization.

20116905384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168009 (or 168005 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 20116905384 in words is "twenty billion, one hundred sixteen million, nine hundred five thousand, three hundred eighty-four".