168499765400 has 48 divisors (see below), whose sum is σ = 392160949200. Its totient is φ = 67331262080.

The previous prime is 168499765387. The next prime is 168499765429. The reversal of 168499765400 is 4567994861.

168499765400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 168499765400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231935 + ... + 625134.

It is an arithmetic number, because the mean of its divisors is an integer number (8170019775).

Almost surely, 2^168499765400 is an apocalyptic number.

168499765400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168499765400 is an abundant number, since it is smaller than the sum of its proper divisors (223661183800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168499765400 is a wasteful number, since it uses less digits than its factorization.

168499765400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858068 (or 858059 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 168499765400 in words is "one hundred sixty-eight billion, four hundred ninety-nine million, seven hundred sixty-five thousand, four hundred".