20473614336 has 312 divisors, whose sum is σ = 65289478080. Its totient is φ = 5685313536.

The previous prime is 20473614323. The next prime is 20473614347. The reversal of 20473614336 is 63341637402.

It is a junction number, because it is equal to n+sod(n) for n = 20473614294 and 20473614303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22277685 + ... + 22278603.

Almost surely, 2^20473614336 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 20473614336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32644739040).

20473614336 is an abundant number, since it is smaller than the sum of its proper divisors (44815863744).

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

20473614336 is an equidigital number, since it uses as much as digits as its factorization.

20473614336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 39.

The spelling of 20473614336 in words is "twenty billion, four hundred seventy-three million, six hundred fourteen thousand, three hundred thirty-six".