168534475655 has 24 divisors (see below), whose sum is σ = 253357326432. Its totient is φ = 106676764992.

The previous prime is 168534475649. The next prime is 168534475699. The reversal of 168534475655 is 556574435861.

It is not a de Polignac number, because 168534475655 - 2⁶ = 168534475591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168534475594 and 168534475603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26454347 + ... + 26460716.

It is an arithmetic number, because the mean of its divisors is an integer number (10556555268).

Almost surely, 2^168534475655 is an apocalyptic number.

168534475655 is a deficient number, since it is larger than the sum of its proper divisors (84822850777).

168534475655 is a wasteful number, since it uses less digits than its factorization.

168534475655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52915095 (or 52915088 counting only the distinct ones).

The product of its digits is 60480000, while the sum is 59.

The spelling of 168534475655 in words is "one hundred sixty-eight billion, five hundred thirty-four million, four hundred seventy-five thousand, six hundred fifty-five".