653443152163 has 4 divisors (see below), whose sum is σ = 653494099840. Its totient is φ = 653392204488.

The previous prime is 653443152157. The next prime is 653443152233. The reversal of 653443152163 is 361251344356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-653443152163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653443152133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25454595 + ... + 25480252.

It is an arithmetic number, because the mean of its divisors is an integer number (163373524960).

Almost surely, 2^653443152163 is an apocalyptic number.

653443152163 is a deficient number, since it is larger than the sum of its proper divisors (50947677).

653443152163 is a wasteful number, since it uses less digits than its factorization.

653443152163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50947676.

The product of its digits is 777600, while the sum is 43.

The spelling of 653443152163 in words is "six hundred fifty-three billion, four hundred forty-three million, one hundred fifty-two thousand, one hundred sixty-three".