168100644884008 has 8 divisors (see below), whose sum is σ = 315188709157530. Its totient is φ = 84050322442000.

The previous prime is 168100644883903. The next prime is 168100644884009. The reversal of 168100644884008 is 800488446001861.

168100644884008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 128048732803044 + 40051912080964 = 11315862^2 + 6328658^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (168100644884009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506290305243 + ... + 10506290305258.

Almost surely, 2^{168100644884008} is an apocalyptic number.

It is an amenable number.

168100644884008 is a deficient number, since it is larger than the sum of its proper divisors (147088064273522).

168100644884008 is a wasteful number, since it uses less digits than its factorization.

168100644884008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012580610507 (or 21012580610503 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 58.

The spelling of 168100644884008 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-four thousand, eight".