2145645344626 has 16 divisors (see below), whose sum is σ = 3678386641920. Its totient is φ = 919527920640.

The previous prime is 2145645344617. The next prime is 2145645344627. The reversal of 2145645344626 is 6264435465412.

It is not an unprimeable number, because it can be changed into a prime (2145645344627) 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, 2474386 + ... + 3227053.

It is an arithmetic number, because the mean of its divisors is an integer number (229899165120).

Almost surely, 2^{2145645344626} is an apocalyptic number.

2145645344626 is a deficient number, since it is larger than the sum of its proper divisors (1532741297294).

2145645344626 is a wasteful number, since it uses less digits than its factorization.

2145645344626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728329.

The product of its digits is 16588800, while the sum is 52.

The spelling of 2145645344626 in words is "two trillion, one hundred forty-five billion, six hundred forty-five million, three hundred forty-four thousand, six hundred twenty-six".