10643265636623 has 4 divisors (see below), whose sum is σ = 10643282062920. Its totient is φ = 10643249210328.

The previous prime is 10643265636599. The next prime is 10643265636659. The reversal of 10643265636623 is 32663656234601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10643265636623 - 2¹⁰ = 10643265635599 is a prime.

It is a super-2 number, since 2×10643265636623² (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 (10643265636323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199540 + ... + 8551017.

It is an arithmetic number, because the mean of its divisors is an integer number (2660820515730).

Almost surely, 2^{10643265636623} is an apocalyptic number.

10643265636623 is a deficient number, since it is larger than the sum of its proper divisors (16426297).

10643265636623 is an equidigital number, since it uses as much as digits as its factorization.

10643265636623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16426296.

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 10643265636623 in words is "ten trillion, six hundred forty-three billion, two hundred sixty-five million, six hundred thirty-six thousand, six hundred twenty-three".