168015644050 has 24 divisors (see below), whose sum is σ = 312561374256. Its totient is φ = 67195015440.

The previous prime is 168015644033. The next prime is 168015644053. The reversal of 168015644050 is 50446510861.

It is a junction number, because it is equal to n+sod(n) for n = 168015643994 and 168015644012.

It is not an unprimeable number, because it can be changed into a prime (168015644053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24117 + ... + 580183.

It is an arithmetic number, because the mean of its divisors is an integer number (13023390594).

Almost surely, 2^168015644050 is an apocalyptic number.

168015644050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168015644050 is a deficient number, since it is larger than the sum of its proper divisors (144545730206).

168015644050 is a wasteful number, since it uses less digits than its factorization.

168015644050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562122 (or 562117 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 168015644050 in words is "one hundred sixty-eight billion, fifteen million, six hundred forty-four thousand, fifty".