10661444004223 has 12 divisors (see below), whose sum is σ = 10801836366880. Its totient is φ = 10522848181536.

The previous prime is 10661444004209. The next prime is 10661444004229. The reversal of 10661444004223 is 32240044416601.

It is not a de Polignac number, because 10661444004223 - 2²⁵ = 10661410449791 is a prime.

It is a super-2 number, since 2×10661444004223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661444004229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6412915 + ... + 7902427.

Almost surely, 2^{10661444004223} is an apocalyptic number.

10661444004223 is a deficient number, since it is larger than the sum of its proper divisors (140392362657).

10661444004223 is an equidigital number, since it uses as much as digits as its factorization.

10661444004223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490718 (or 1490635 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 10661444004223 in words is "ten trillion, six hundred sixty-one billion, four hundred forty-four million, four thousand, two hundred twenty-three".