163321083769 has 4 divisors (see below), whose sum is σ = 163327760640. Its totient is φ = 163314406900.

The previous prime is 163321083743. The next prime is 163321083781. The reversal of 163321083769 is 967380123361.

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: 967380123361 = 31 ⋅31205810431.

It is a cyclic number.

It is not a de Polignac number, because 163321083769 - 2⁷ = 163321083641 is a prime.

It is a super-2 number, since 2×163321083769² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163321083719) 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, 3301609 + ... + 3350710.

It is an arithmetic number, because the mean of its divisors is an integer number (40831940160).

Almost surely, 2^163321083769 is an apocalyptic number.

It is an amenable number.

163321083769 is a deficient number, since it is larger than the sum of its proper divisors (6676871).

163321083769 is an equidigital number, since it uses as much as digits as its factorization.

163321083769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676870.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 163321083769 in words is "one hundred sixty-three billion, three hundred twenty-one million, eighty-three thousand, seven hundred sixty-nine".