21416863088420 has 48 divisors (see below), whose sum is σ = 45205191158400. Its totient is φ = 8522985056256.

The previous prime is 21416863088419. The next prime is 21416863088429. The reversal of 21416863088420 is 2488036861412.

It is not an unprimeable number, because it can be changed into a prime (21416863088429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48827204 + ... + 49263876.

It is an arithmetic number, because the mean of its divisors is an integer number (941774815800).

Almost surely, 2^{21416863088420} is an apocalyptic number.

21416863088420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21416863088420 is an abundant number, since it is smaller than the sum of its proper divisors (23788328069980).

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

21416863088420 is a wasteful number, since it uses less digits than its factorization.

21416863088420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449204 (or 449202 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 53.

The spelling of 21416863088420 in words is "twenty-one trillion, four hundred sixteen billion, eight hundred sixty-three million, eighty-eight thousand, four hundred twenty".