21602553067130 has 32 divisors (see below), whose sum is σ = 44439762184704. Its totient is φ = 7406552215296.

The previous prime is 21602553067037. The next prime is 21602553067159. The reversal of 21602553067130 is 3176035520612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15629759 + ... + 16955661.

It is an arithmetic number, because the mean of its divisors is an integer number (1388742568272).

Almost surely, 2^{21602553067130} is an apocalyptic number.

21602553067130 is an abundant number, since it is smaller than the sum of its proper divisors (22837209117574).

21602553067130 is a wasteful number, since it uses less digits than its factorization.

21602553067130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558670.

The product of its (nonzero) digits is 226800, while the sum is 41.

Adding to 21602553067130 its reverse (3176035520612), we get a palindrome (24778588587742).

The spelling of 21602553067130 in words is "twenty-one trillion, six hundred two billion, five hundred fifty-three million, sixty-seven thousand, one hundred thirty".