168858611044 has 12 divisors (see below), whose sum is σ = 296554181868. Its totient is φ = 84128844800.

The previous prime is 168858611027. The next prime is 168858611057. The reversal of 168858611044 is 440116858861.

It can be written as a sum of positive squares in 2 ways, for example, as 61857658944 + 107000952100 = 248712^2 + 327110^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168858610982 and 168858611000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75113917 + ... + 75116164.

It is an arithmetic number, because the mean of its divisors is an integer number (24712848489).

Almost surely, 2^168858611044 is an apocalyptic number.

It is an amenable number.

168858611044 is a deficient number, since it is larger than the sum of its proper divisors (127695570824).

168858611044 is a wasteful number, since it uses less digits than its factorization.

168858611044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150230366 (or 150230364 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 52.

The spelling of 168858611044 in words is "one hundred sixty-eight billion, eight hundred fifty-eight million, six hundred eleven thousand, forty-four".