645233141332546 has 32 divisors (see below), whose sum is σ = 1050445203812928. Its totient is φ = 295473439984320.

The previous prime is 645233141332543. The next prime is 645233141332547.

645233141332546 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 645233141332493 and 645233141332502.

It is not an unprimeable number, because it can be changed into a prime (645233141332543) 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 15 ways as a sum of consecutive naturals, for example, 1881961 + ... + 35972323.

It is an arithmetic number, because the mean of its divisors is an integer number (32826412619154).

Almost surely, 2^{645233141332546} is an apocalyptic number.

645233141332546 is a deficient number, since it is larger than the sum of its proper divisors (405212062480382).

645233141332546 is a wasteful number, since it uses less digits than its factorization.

645233141332546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34096066.

The product of its digits is 18662400, while the sum is 52.

The spelling of 645233141332546 in words is "six hundred forty-five trillion, two hundred thirty-three billion, one hundred forty-one million, three hundred thirty-two thousand, five hundred forty-six".