20841468480 has 392 divisors, whose sum is σ = 85045612992. Its totient is φ = 4763390976.

The previous prime is 20841468421. The next prime is 20841468481. The reversal of 20841468480 is 8486414802.

20841468480 is a `hidden beast` number, since 20 + 8 + 4 + 146 + 8 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20841468481) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1626579 + ... + 1639341.

Almost surely, 2^20841468480 is an apocalyptic number.

20841468480 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 20841468480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42522806496).

20841468480 is an abundant number, since it is smaller than the sum of its proper divisors (64204144512).

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

20841468480 is an equidigital number, since it uses as much as digits as its factorization.

20841468480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12805 (or 12780 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The spelling of 20841468480 in words is "twenty billion, eight hundred forty-one million, four hundred sixty-eight thousand, four hundred eighty".