21133567148 has 12 divisors (see below), whose sum is σ = 36984819312. Its totient is φ = 10566475920.

The previous prime is 21133567141. The next prime is 21133567157. The reversal of 21133567148 is 84176533112.

It is not an unprimeable number, because it can be changed into a prime (21133567141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 156038 + ... + 258098.

It is an arithmetic number, because the mean of its divisors is an integer number (3082068276).

Almost surely, 2^21133567148 is an apocalyptic number.

It is an amenable number.

21133567148 is a deficient number, since it is larger than the sum of its proper divisors (15851252164).

21133567148 is a wasteful number, since it uses less digits than its factorization.

21133567148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153832 (or 153830 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The spelling of 21133567148 in words is "twenty-one billion, one hundred thirty-three million, five hundred sixty-seven thousand, one hundred forty-eight".