653224616161 has 4 divisors (see below), whose sum is σ = 703472663572. Its totient is φ = 602976568752.

The previous prime is 653224616147. The next prime is 653224616167. The reversal of 653224616161 is 161616422356.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87072206400 + 566152409761 = 295080^2 + 752431^2 .

It is a cyclic number.

It is not a de Polignac number, because 653224616161 - 2⁵ = 653224616129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653224616167) 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, 25124023686 + ... + 25124023711.

It is an arithmetic number, because the mean of its divisors is an integer number (175868165893).

Almost surely, 2^653224616161 is an apocalyptic number.

It is an amenable number.

653224616161 is a deficient number, since it is larger than the sum of its proper divisors (50248047411).

653224616161 is a wasteful number, since it uses less digits than its factorization.

653224616161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50248047410.

The product of its digits is 311040, while the sum is 43.

The spelling of 653224616161 in words is "six hundred fifty-three billion, two hundred twenty-four million, six hundred sixteen thousand, one hundred sixty-one".