10643321220164 has 12 divisors (see below), whose sum is σ = 18625837683600. Its totient is φ = 5321653310568.

The previous prime is 10643321220151. The next prime is 10643321220223. The reversal of 10643321220164 is 46102212334601.

It is a super-2 number, since 2×10643321220164² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705447 + ... + 5348465.

It is an arithmetic number, because the mean of its divisors is an integer number (1552153140300).

Almost surely, 2^{10643321220164} is an apocalyptic number.

It is an amenable number.

10643321220164 is a deficient number, since it is larger than the sum of its proper divisors (7982516463436).

10643321220164 is a wasteful number, since it uses less digits than its factorization.

10643321220164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649762 (or 3649760 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 10643321220164 its reverse (46102212334601), we get a palindrome (56745533554765).

The spelling of 10643321220164 in words is "ten trillion, six hundred forty-three billion, three hundred twenty-one million, two hundred twenty thousand, one hundred sixty-four".