168655478628 has 72 divisors (see below), whose sum is σ = 487005210048. Its totient is φ = 44480562048.

The previous prime is 168655478627. The next prime is 168655478699. The reversal of 168655478628 is 826874556861.

168655478628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (168655478627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5926051 + ... + 5954442.

Almost surely, 2^168655478628 is an apocalyptic number.

It is an amenable number.

168655478628 is an abundant number, since it is smaller than the sum of its proper divisors (318349731420).

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

168655478628 is a wasteful number, since it uses less digits than its factorization.

168655478628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11880533 (or 11880518 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 66.

The spelling of 168655478628 in words is "one hundred sixty-eight billion, six hundred fifty-five million, four hundred seventy-eight thousand, six hundred twenty-eight".