21035150608 has 20 divisors (see below), whose sum is σ = 41857108300. Its totient is φ = 10233316224.

The previous prime is 21035150599. The next prime is 21035150611. The reversal of 21035150608 is 80605153012.

It can be written as a sum of positive squares in 2 ways, for example, as 17147378704 + 3887771904 = 130948^2 + 62352^2 .

It is a super-2 number, since 2×21035150608² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21035150608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17765583 + ... + 17766766.

It is an arithmetic number, because the mean of its divisors is an integer number (2092855415).

Almost surely, 2^21035150608 is an apocalyptic number.

It is an amenable number.

21035150608 is a deficient number, since it is larger than the sum of its proper divisors (20821957692).

21035150608 is a wasteful number, since it uses less digits than its factorization.

21035150608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35532394 (or 35532388 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 21035150608 in words is "twenty-one billion, thirty-five million, one hundred fifty thousand, six hundred eight".