21337570610 has 8 divisors (see below), whose sum is σ = 38407627116. Its totient is φ = 8535028240.

The previous prime is 21337570571. The next prime is 21337570619. The reversal of 21337570610 is 1607573312.

It can be written as a sum of positive squares in 2 ways, for example, as 21336737041 + 833569 = 146071^2 + 913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21337570619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066878521 + ... + 1066878540.

Almost surely, 2^21337570610 is an apocalyptic number.

21337570610 is a deficient number, since it is larger than the sum of its proper divisors (17070056506).

21337570610 is a wasteful number, since it uses less digits than its factorization.

21337570610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133757068.

The product of its (nonzero) digits is 26460, while the sum is 35.

The spelling of 21337570610 in words is "twenty-one billion, three hundred thirty-seven million, five hundred seventy thousand, six hundred ten".