21650505260114 has 16 divisors (see below), whose sum is σ = 32509031335200. Its totient is φ = 10814162953440.

The previous prime is 21650505260047. The next prime is 21650505260143. The reversal of 21650505260114 is 41106250505612.

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 7 ways as a sum of consecutive naturals, for example, 29689409 + ... + 30409899.

It is an arithmetic number, because the mean of its divisors is an integer number (2031814458450).

Almost surely, 2^{21650505260114} is an apocalyptic number.

21650505260114 is a deficient number, since it is larger than the sum of its proper divisors (10858526075086).

21650505260114 is a wasteful number, since it uses less digits than its factorization.

21650505260114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735865.

The product of its (nonzero) digits is 72000, while the sum is 38.

Adding to 21650505260114 its reverse (41106250505612), we get a palindrome (62756755765726).

The spelling of 21650505260114 in words is "twenty-one trillion, six hundred fifty billion, five hundred five million, two hundred sixty thousand, one hundred fourteen".