21144484110016 has 28 divisors (see below), whose sum is σ = 41958806755320. Its totient is φ = 10572186344960.

The previous prime is 21144484109897. The next prime is 21144484110089. The reversal of 21144484110016 is 61001148444112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13110615 + ... + 14634793.

It is an arithmetic number, because the mean of its divisors is an integer number (1498528812690).

Almost surely, 2^{21144484110016} is an apocalyptic number.

It is an amenable number.

21144484110016 is a deficient number, since it is larger than the sum of its proper divisors (20814322645304).

21144484110016 is a wasteful number, since it uses less digits than its factorization.

21144484110016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740952 (or 1740942 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 21144484110016 in words is "twenty-one trillion, one hundred forty-four billion, four hundred eighty-four million, one hundred ten thousand, sixteen".