168535222405 has 16 divisors (see below), whose sum is σ = 221003826624. Its totient is φ = 122362238080.

The previous prime is 168535222399. The next prime is 168535222423. The reversal of 168535222405 is 504222535861.

It is not a de Polignac number, because 168535222405 - 2¹⁵ = 168535189637 is a prime.

It is a super-2 number, since 2×168535222405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 2577832 + ... + 2642401.

It is an arithmetic number, because the mean of its divisors is an integer number (13812739164).

Almost surely, 2^168535222405 is an apocalyptic number.

It is an amenable number.

168535222405 is a deficient number, since it is larger than the sum of its proper divisors (52468604219).

168535222405 is a wasteful number, since it uses less digits than its factorization.

168535222405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220836.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 168535222405 in words is "one hundred sixty-eight billion, five hundred thirty-five million, two hundred twenty-two thousand, four hundred five".