2645203426163 has 8 divisors (see below), whose sum is σ = 2897383063680. Its totient is φ = 2403754837120.

The previous prime is 2645203426157. The next prime is 2645203426189. The reversal of 2645203426163 is 3616243025462.

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

It is not a de Polignac number, because 2645203426163 - 2¹⁶ = 2645203360627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645203426193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2682761603 + ... + 2682762588.

It is an arithmetic number, because the mean of its divisors is an integer number (362172882960).

Almost surely, 2^{2645203426163} is an apocalyptic number.

2645203426163 is a deficient number, since it is larger than the sum of its proper divisors (252179637517).

2645203426163 is a wasteful number, since it uses less digits than its factorization.

2645203426163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365524237.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 2645203426163 in words is "two trillion, six hundred forty-five billion, two hundred three million, four hundred twenty-six thousand, one hundred sixty-three".