653306664163 has 4 divisors (see below), whose sum is σ = 654003897400. Its totient is φ = 652609430928.

The previous prime is 653306664161. The next prime is 653306664211. The reversal of 653306664163 is 361466603356.

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

It is a cyclic number.

It is not a de Polignac number, because 653306664163 - 2¹ = 653306664161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653306664161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348615213 + ... + 348617086.

It is an arithmetic number, because the mean of its divisors is an integer number (163500974350).

Almost surely, 2^653306664163 is an apocalyptic number.

653306664163 is a deficient number, since it is larger than the sum of its proper divisors (697233237).

653306664163 is an equidigital number, since it uses as much as digits as its factorization.

653306664163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697233236.

The product of its (nonzero) digits is 4199040, while the sum is 49.

The spelling of 653306664163 in words is "six hundred fifty-three billion, three hundred six million, six hundred sixty-four thousand, one hundred sixty-three".