163360221361 has 4 divisors (see below), whose sum is σ = 164362431472. Its totient is φ = 162358011252.

The previous prime is 163360221341. The next prime is 163360221433. The reversal of 163360221361 is 163122063361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163122063361 = 5813 ⋅28061597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163360221361 is a prime.

It is a super-2 number, since 2×163360221361² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163360221341) 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, 501104811 + ... + 501105136.

It is an arithmetic number, because the mean of its divisors is an integer number (41090607868).

Almost surely, 2^163360221361 is an apocalyptic number.

It is an amenable number.

163360221361 is a deficient number, since it is larger than the sum of its proper divisors (1002210111).

163360221361 is a wasteful number, since it uses less digits than its factorization.

163360221361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002210110.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 163360221361 in words is "one hundred sixty-three billion, three hundred sixty million, two hundred twenty-one thousand, three hundred sixty-one".