168733536313 has 8 divisors (see below), whose sum is σ = 169230948840. Its totient is φ = 168236789760.

The previous prime is 168733536311. The next prime is 168733536343. The reversal of 168733536313 is 313635337861.

It can be written as a sum of positive squares in 4 ways, for example, as 80935698064 + 87797838249 = 284492^2 + 296307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168733536313 - 2¹ = 168733536311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168733536311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343273 + ... + 674761.

It is an arithmetic number, because the mean of its divisors is an integer number (21153868605).

Almost surely, 2^168733536313 is an apocalyptic number.

It is an amenable number.

168733536313 is a deficient number, since it is larger than the sum of its proper divisors (497412527).

168733536313 is an equidigital number, since it uses as much as digits as its factorization.

168733536313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332987.

The product of its digits is 2449440, while the sum is 49.

The spelling of 168733536313 in words is "one hundred sixty-eight billion, seven hundred thirty-three million, five hundred thirty-six thousand, three hundred thirteen".