21337261500532 has 12 divisors (see below), whose sum is σ = 37391569677280. Its totient is φ = 10653955878456.

The previous prime is 21337261500523. The next prime is 21337261500571. The reversal of 21337261500532 is 23500516273312.

It is a happy number.

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, 3668714682 + ... + 3668720497.

Almost surely, 2^{21337261500532} is an apocalyptic number.

It is an amenable number.

21337261500532 is a deficient number, since it is larger than the sum of its proper divisors (16054308176748).

21337261500532 is a wasteful number, since it uses less digits than its factorization.

21337261500532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7337435910 (or 7337435908 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

Adding to 21337261500532 its reverse (23500516273312), we get a palindrome (44837777773844).

The spelling of 21337261500532 in words is "twenty-one trillion, three hundred thirty-seven billion, two hundred sixty-one million, five hundred thousand, five hundred thirty-two".