168383542065 has 16 divisors (see below), whose sum is σ = 273434768448. Its totient is φ = 88464188736.

The previous prime is 168383542057. The next prime is 168383542123. The reversal of 168383542065 is 560245383861.

168383542065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168383542065 - 2³ = 168383542057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168383541999 and 168383542017.

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 15 ways as a sum of consecutive naturals, for example, 83771902 + ... + 83773911.

It is an arithmetic number, because the mean of its divisors is an integer number (17089673028).

Almost surely, 2^168383542065 is an apocalyptic number.

168383542065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168383542065 is a deficient number, since it is larger than the sum of its proper divisors (105051226383).

168383542065 is a wasteful number, since it uses less digits than its factorization.

168383542065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167545888.

The product of its (nonzero) digits is 4147200, while the sum is 51.

The spelling of 168383542065 in words is "one hundred sixty-eight billion, three hundred eighty-three million, five hundred forty-two thousand, sixty-five".