21526132132 has 24 divisors (see below), whose sum is σ = 39178728512. Its totient is φ = 10340416800.

The previous prime is 21526132127. The next prime is 21526132163. The reversal of 21526132132 is 23123162512.

It is a self number, because there is not a number n which added to its sum of digits gives 21526132132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015344 + ... + 1036327.

Almost surely, 2^21526132132 is an apocalyptic number.

It is an amenable number.

21526132132 is a deficient number, since it is larger than the sum of its proper divisors (17652596380).

21526132132 is a wasteful number, since it uses less digits than its factorization.

21526132132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051779 (or 2051777 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

Adding to 21526132132 its reverse (23123162512), we get a palindrome (44649294644).

The spelling of 21526132132 in words is "twenty-one billion, five hundred twenty-six million, one hundred thirty-two thousand, one hundred thirty-two".