2252643216643 has 8 divisors (see below), whose sum is σ = 2376555998400. Its totient is φ = 2129265696168.

The previous prime is 2252643216617. The next prime is 2252643216689. The reversal of 2252643216643 is 3466123462522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2252643216643 - 2²⁵ = 2252609662211 is a prime.

It is a super-2 number, since 2×2252643216643² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2252643216593 and 2252643216602.

It is not an unprimeable number, because it can be changed into a prime (2252643286643) 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, 133806673 + ... + 133823506.

It is an arithmetic number, because the mean of its divisors is an integer number (297069499800).

Almost surely, 2^{2252643216643} is an apocalyptic number.

2252643216643 is a deficient number, since it is larger than the sum of its proper divisors (123912781757).

2252643216643 is a wasteful number, since it uses less digits than its factorization.

2252643216643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267630641.

The product of its digits is 2488320, while the sum is 46.

The spelling of 2252643216643 in words is "two trillion, two hundred fifty-two billion, six hundred forty-three million, two hundred sixteen thousand, six hundred forty-three".