21533341445432 has 16 divisors (see below), whose sum is σ = 40375068620760. Its totient is φ = 10766656479904.

The previous prime is 21533341445419. The next prime is 21533341445459. The reversal of 21533341445432 is 23454414333512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7476038 + ... + 9947754.

Almost surely, 2^{21533341445432} is an apocalyptic number.

It is an amenable number.

21533341445432 is a deficient number, since it is larger than the sum of its proper divisors (18841727175328).

21533341445432 is a wasteful number, since it uses less digits than its factorization.

21533341445432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560710 (or 3560706 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

Adding to 21533341445432 its reverse (23454414333512), we get a palindrome (44987755778944).

The spelling of 21533341445432 in words is "twenty-one trillion, five hundred thirty-three billion, three hundred forty-one million, four hundred forty-five thousand, four hundred thirty-two".