168408320435 has 16 divisors (see below), whose sum is σ = 203005497024. Its totient is φ = 134117609472.

The previous prime is 168408320417. The next prime is 168408320441. The reversal of 168408320435 is 534023804861.

It is a cyclic number.

It is not a de Polignac number, because 168408320435 - 2¹⁶ = 168408254899 is a prime.

It is a super-2 number, since 2×168408320435² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966194 + ... + 1127096.

It is an arithmetic number, because the mean of its divisors is an integer number (12687843564).

Almost surely, 2^168408320435 is an apocalyptic number.

168408320435 is a deficient number, since it is larger than the sum of its proper divisors (34597176589).

168408320435 is a wasteful number, since it uses less digits than its factorization.

168408320435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161854.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 168408320435 in words is "one hundred sixty-eight billion, four hundred eight million, three hundred twenty thousand, four hundred thirty-five".