20316045642464 has 192 divisors, whose sum is σ = 48619333002240. Its totient is φ = 8228708382720.

The previous prime is 20316045642461. The next prime is 20316045642469. The reversal of 20316045642464 is 46424654061302.

20316045642464 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20316045642461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910736399 + ... + 910758705.

It is an arithmetic number, because the mean of its divisors is an integer number (253225692720).

Almost surely, 2^{20316045642464} 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 20316045642464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24309666501120).

20316045642464 is an abundant number, since it is smaller than the sum of its proper divisors (28303287359776).

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

20316045642464 is a wasteful number, since it uses less digits than its factorization.

20316045642464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29233 (or 29225 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 47.

The spelling of 20316045642464 in words is "twenty trillion, three hundred sixteen billion, forty-five million, six hundred forty-two thousand, four hundred sixty-four".