21710575330 has 16 divisors (see below), whose sum is σ = 39294945144. Its totient is φ = 8636250240.

The previous prime is 21710575303. The next prime is 21710575349. The reversal of 21710575330 is 3357501712.

It can be written as a sum of positive squares in 4 ways, for example, as 3431264929 + 18279310401 = 58577^2 + 135201^2 .

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, 5995587 + ... + 5999206.

Almost surely, 2^21710575330 is an apocalyptic number.

21710575330 is a deficient number, since it is larger than the sum of its proper divisors (17584369814).

21710575330 is a wasteful number, since it uses less digits than its factorization.

21710575330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994981.

The product of its (nonzero) digits is 22050, while the sum is 34.

The spelling of 21710575330 in words is "twenty-one billion, seven hundred ten million, five hundred seventy-five thousand, three hundred thirty".