168204246403 has 4 divisors (see below), whose sum is σ = 170573320368. Its totient is φ = 165835172440.

The previous prime is 168204246401. The next prime is 168204246433. The reversal of 168204246403 is 304642402861.

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

It is a cyclic number.

It is not a de Polignac number, because 168204246403 - 2¹ = 168204246401 is a prime.

It is a super-2 number, since 2×168204246403² (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 (168204246401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184536876 + ... + 1184537017.

It is an arithmetic number, because the mean of its divisors is an integer number (42643330092).

Almost surely, 2^168204246403 is an apocalyptic number.

168204246403 is a deficient number, since it is larger than the sum of its proper divisors (2369073965).

168204246403 is an equidigital number, since it uses as much as digits as its factorization.

168204246403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369073964.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 168204246403 in words is "one hundred sixty-eight billion, two hundred four million, two hundred forty-six thousand, four hundred three".