21110408148 has 48 divisors (see below), whose sum is σ = 50873661440. Its totient is φ = 6806181600.

The previous prime is 21110408131. The next prime is 21110408153. The reversal of 21110408148 is 84180401112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733983 + ... + 762201.

Almost surely, 2^21110408148 is an apocalyptic number.

It is an amenable number.

21110408148 is an abundant number, since it is smaller than the sum of its proper divisors (29763253292).

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

21110408148 is a wasteful number, since it uses less digits than its factorization.

21110408148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30268 (or 30266 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 21110408148 in words is "twenty-one billion, one hundred ten million, four hundred eight thousand, one hundred forty-eight".