20385446116 has 48 divisors (see below), whose sum is σ = 42479603712. Its totient is φ = 8375738400.

The previous prime is 20385446099. The next prime is 20385446129. The reversal of 20385446116 is 61164458302.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16870 + ... + 202621.

It is an arithmetic number, because the mean of its divisors is an integer number (884991744).

Almost surely, 2^20385446116 is an apocalyptic number.

It is an amenable number.

20385446116 is an abundant number, since it is smaller than the sum of its proper divisors (22094157596).

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

20385446116 is a wasteful number, since it uses less digits than its factorization.

20385446116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219640 (or 219638 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 20385446116 in words is "twenty billion, three hundred eighty-five million, four hundred forty-six thousand, one hundred sixteen".