21152350523024 has 40 divisors (see below), whose sum is σ = 46850628117888. Its totient is φ = 9062722656000.

The previous prime is 21152350522991. The next prime is 21152350523077. The reversal of 21152350523024 is 42032505325112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26378477 + ... + 27168524.

Almost surely, 2^{21152350523024} is an apocalyptic number.

It is an amenable number.

21152350523024 is an abundant number, since it is smaller than the sum of its proper divisors (25698277594864).

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

21152350523024 is a wasteful number, since it uses less digits than its factorization.

21152350523024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550543 (or 53550537 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 21152350523024 its reverse (42032505325112), we get a palindrome (63184855848136).

The spelling of 21152350523024 in words is "twenty-one trillion, one hundred fifty-two billion, three hundred fifty million, five hundred twenty-three thousand, twenty-four".