21411080336 has 10 divisors (see below), whose sum is σ = 41483968182. Its totient is φ = 10705540160.

The previous prime is 21411080329. The next prime is 21411080357. The reversal of 21411080336 is 63308011412.

It can be written as a sum of positive squares in only one way, i.e., 14496160000 + 6914920336 = 120400^2 + 83156^2 .

It is a super-2 number, since 2×21411080336² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21411080299 and 21411080308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669096245 + ... + 669096276.

Almost surely, 2^21411080336 is an apocalyptic number.

It is an amenable number.

21411080336 is a deficient number, since it is larger than the sum of its proper divisors (20072887846).

21411080336 is a wasteful number, since it uses less digits than its factorization.

21411080336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338192529 (or 1338192523 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 21411080336 its reverse (63308011412), we get a palindrome (84719091748).

The spelling of 21411080336 in words is "twenty-one billion, four hundred eleven million, eighty thousand, three hundred thirty-six".