168100644883902 has 32 divisors (see below), whose sum is σ = 337830602310432. Its totient is φ = 55762592369664.

The previous prime is 168100644883901. The next prime is 168100644883903. The reversal of 168100644883902 is 209388446001861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (168100644883901) and next prime (168100644883903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168100644883901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73392343 + ... + 75648114.

It is an arithmetic number, because the mean of its divisors is an integer number (10557206322201).

Almost surely, 2^{168100644883902} is an apocalyptic number.

168100644883902 is an abundant number, since it is smaller than the sum of its proper divisors (169729957426530).

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

168100644883902 is a wasteful number, since it uses less digits than its factorization.

168100644883902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149041372.

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 168100644883902 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-three thousand, nine hundred two".