168696856395 has 24 divisors (see below), whose sum is σ = 292549374000. Its totient is φ = 89928121536.

The previous prime is 168696856369. The next prime is 168696856397. The reversal of 168696856395 is 593658696861.

It is not a de Polignac number, because 168696856395 - 2¹⁵ = 168696823627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168696856397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 812845 + ... + 999054.

It is an arithmetic number, because the mean of its divisors is an integer number (12189557250).

Almost surely, 2^168696856395 is an apocalyptic number.

168696856395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168696856395 is a deficient number, since it is larger than the sum of its proper divisors (123852517605).

168696856395 is a wasteful number, since it uses less digits than its factorization.

168696856395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813979 (or 1813976 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 72.

The spelling of 168696856395 in words is "one hundred sixty-eight billion, six hundred ninety-six million, eight hundred fifty-six thousand, three hundred ninety-five".