10644423668 has 24 divisors (see below), whose sum is σ = 19283050080. Its totient is φ = 5135228000.

The previous prime is 10644423661. The next prime is 10644423701. The reversal of 10644423668 is 86632444601.

It is a super-2 number, since 2×10644423668² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10644423661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146543 + ... + 206793.

It is an arithmetic number, because the mean of its divisors is an integer number (803460420).

Almost surely, 2^10644423668 is an apocalyptic number.

It is an amenable number.

10644423668 is a deficient number, since it is larger than the sum of its proper divisors (8638626412).

10644423668 is a wasteful number, since it uses less digits than its factorization.

10644423668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61807 (or 61805 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 10644423668 in words is "ten billion, six hundred forty-four million, four hundred twenty-three thousand, six hundred sixty-eight".