20046317163904 has 256 divisors, whose sum is σ = 43993340928000. Its totient is φ = 9062660505600.

The previous prime is 20046317163883. The next prime is 20046317163941. The reversal of 20046317163904 is 40936171364002.

It is a super-2 number, since 2×20046317163904² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8106071212 + ... + 8106073684.

It is an arithmetic number, because the mean of its divisors is an integer number (171848988000).

Almost surely, 2^{20046317163904} 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 20046317163904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21996670464000).

20046317163904 is an abundant number, since it is smaller than the sum of its proper divisors (23947023764096).

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

20046317163904 is a wasteful number, since it uses less digits than its factorization.

20046317163904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977 (or 3965 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 20046317163904 in words is "twenty trillion, forty-six billion, three hundred seventeen million, one hundred sixty-three thousand, nine hundred four".