21614320532 has 24 divisors (see below), whose sum is σ = 43266263040. Its totient is φ = 9255218400.

The previous prime is 21614320501. The next prime is 21614320543. The reversal of 21614320532 is 23502341612.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21614320495 and 21614320504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303107 + ... + 367562.

It is an arithmetic number, because the mean of its divisors is an integer number (1802760960).

Almost surely, 2^21614320532 is an apocalyptic number.

It is an amenable number.

21614320532 is an abundant number, since it is smaller than the sum of its proper divisors (21651942508).

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

21614320532 is a wasteful number, since it uses less digits than its factorization.

21614320532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671831 (or 671829 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 21614320532 in words is "twenty-one billion, six hundred fourteen million, three hundred twenty thousand, five hundred thirty-two".