168140503895 has 96 divisors (see below), whose sum is σ = 266629164480. Its totient is φ = 100613560320.

The previous prime is 168140503889. The next prime is 168140503901. The reversal of 168140503895 is 598305041861.

It is an interprime number because it is at equal distance from previous prime (168140503889) and next prime (168140503901).

It is not a de Polignac number, because 168140503895 - 2⁴ = 168140503879 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 31525649 + ... + 31530981.

It is an arithmetic number, because the mean of its divisors is an integer number (2777387130).

Almost surely, 2^168140503895 is an apocalyptic number.

168140503895 is a deficient number, since it is larger than the sum of its proper divisors (98488660585).

168140503895 is a wasteful number, since it uses less digits than its factorization.

168140503895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 168140503895 in words is "one hundred sixty-eight billion, one hundred forty million, five hundred three thousand, eight hundred ninety-five".