21533535542232 has 64 divisors (see below), whose sum is σ = 68360430297600. Its totient is φ = 6152438725920.

The previous prime is 21533535542221. The next prime is 21533535542249. The reversal of 21533535542232 is 23224553533512.

21533535542232 is a `hidden beast` number, since 2 + 1 + 5 + 33 + 53 + 5 + 542 + 23 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7120876644 + ... + 7120879667.

It is an arithmetic number, because the mean of its divisors is an integer number (1068131723400).

Almost surely, 2^{21533535542232} is an apocalyptic number.

It is an amenable number.

21533535542232 is an abundant number, since it is smaller than the sum of its proper divisors (46826894755368).

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

21533535542232 is a wasteful number, since it uses less digits than its factorization.

21533535542232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14241756333 (or 14241756323 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 45.

The spelling of 21533535542232 in words is "twenty-one trillion, five hundred thirty-three billion, five hundred thirty-five million, five hundred forty-two thousand, two hundred thirty-two".