20326764480 has 336 divisors, whose sum is σ = 72785215872. Its totient is φ = 4766361600.

The previous prime is 20326764473. The next prime is 20326764503. The reversal of 20326764480 is 8446762302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10147159 + ... + 10149161.

Almost surely, 2^20326764480 is an apocalyptic number.

20326764480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20326764480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36392607936).

20326764480 is an abundant number, since it is smaller than the sum of its proper divisors (52458451392).

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

20326764480 is a wasteful number, since it uses less digits than its factorization.

20326764480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096 (or 2055 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 20326764480 in words is "twenty billion, three hundred twenty-six million, seven hundred sixty-four thousand, four hundred eighty".