20881476000 has 1536 divisors, whose sum is σ = 99028500480. Its totient is φ = 4199040000.

The previous prime is 20881475983. The next prime is 20881476047. The reversal of 20881476000 is 67418802.

20881476000 is a `hidden beast` number, since 2 + 0 + 8 + 8 + 1 + 47 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 673595985 + ... + 673596015.

It is an arithmetic number, because the mean of its divisors is an integer number (64471680).

Almost surely, 2^20881476000 is an apocalyptic number.

20881476000 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 20881476000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49514250240).

20881476000 is an abundant number, since it is smaller than the sum of its proper divisors (78147024480).

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

20881476000 is an equidigital number, since it uses as much as digits as its factorization.

20881476000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 20881476000 in words is "twenty billion, eight hundred eighty-one million, four hundred seventy-six thousand".