163611606121333 has 4 divisors (see below), whose sum is σ = 163611721179648. Its totient is φ = 163611491063020.

The previous prime is 163611606121273. The next prime is 163611606121351. The reversal of 163611606121333 is 333121606116361.

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.

It is a cyclic number.

It is not a de Polignac number, because 163611606121333 - 2²¹ = 163611604024181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163611606121333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163611606121363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55369141 + ... + 58249162.

It is an arithmetic number, because the mean of its divisors is an integer number (40902930294912).

Almost surely, 2^{163611606121333} is an apocalyptic number.

It is an amenable number.

163611606121333 is a deficient number, since it is larger than the sum of its proper divisors (115058315).

163611606121333 is a wasteful number, since it uses less digits than its factorization.

163611606121333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115058314.

The product of its (nonzero) digits is 209952, while the sum is 43.

The spelling of 163611606121333 in words is "one hundred sixty-three trillion, six hundred eleven billion, six hundred six million, one hundred twenty-one thousand, three hundred thirty-three".