663445434342153 has 16 divisors (see below), whose sum is σ = 897081699096576. Its totient is φ = 436053461761680.

The previous prime is 663445434342149. The next prime is 663445434342203. The reversal of 663445434342153 is 351243434544366.

663445434342153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663445434342153 - 2² = 663445434342149 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 663445434342093 and 663445434342102.

It is not an unprimeable number, because it can be changed into a prime (663445434342143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43185451 + ... + 56496672.

It is an arithmetic number, because the mean of its divisors is an integer number (56067606193536).

Almost surely, 2^{663445434342153} is an apocalyptic number.

It is an amenable number.

663445434342153 is a deficient number, since it is larger than the sum of its proper divisors (233636264754423).

663445434342153 is a wasteful number, since it uses less digits than its factorization.

663445434342153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99713444.

The product of its digits is 149299200, while the sum is 57.

The spelling of 663445434342153 in words is "six hundred sixty-three trillion, four hundred forty-five billion, four hundred thirty-four million, three hundred forty-two thousand, one hundred fifty-three".