21116499914048 has 56 divisors (see below), whose sum is σ = 52242769280064. Its totient is φ = 8227207756800.

The previous prime is 21116499914047. The next prime is 21116499914051. The reversal of 21116499914048 is 84041999461112.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21116499914047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142497093 + ... + 2142506948.

Almost surely, 2^{21116499914048} is an apocalyptic number.

21116499914048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21116499914048 is an abundant number, since it is smaller than the sum of its proper divisors (31126269366016).

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

21116499914048 is a wasteful number, since it uses less digits than its factorization.

21116499914048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285004071 (or 4285004061 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 59.

The spelling of 21116499914048 in words is "twenty-one trillion, one hundred sixteen billion, four hundred ninety-nine million, nine hundred fourteen thousand, forty-eight".