20416548912 has 320 divisors, whose sum is σ = 58624819200. Its totient is φ = 6105415680.

The previous prime is 20416548907. The next prime is 20416548923. The reversal of 20416548912 is 21984561402.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 180677368 + ... + 180677480.

It is an arithmetic number, because the mean of its divisors is an integer number (183202560).

Almost surely, 2^20416548912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20416548912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29312409600).

20416548912 is an abundant number, since it is smaller than the sum of its proper divisors (38208270288).

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

20416548912 is a wasteful number, since it uses less digits than its factorization.

20416548912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 20416548912 in words is "twenty billion, four hundred sixteen million, five hundred forty-eight thousand, nine hundred twelve".