168777116928 has 108 divisors (see below), whose sum is σ = 556144094688. Its totient is φ = 48222028800.

The previous prime is 168777116923. The next prime is 168777116929. The reversal of 168777116928 is 829611777861.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168777116923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5216298 + ... + 5248553.

Almost surely, 2^168777116928 is an apocalyptic number.

168777116928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168777116928 is an abundant number, since it is smaller than the sum of its proper divisors (387366977760).

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

168777116928 is a wasteful number, since it uses less digits than its factorization.

168777116928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464880 (or 10464863 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 63.

The spelling of 168777116928 in words is "one hundred sixty-eight billion, seven hundred seventy-seven million, one hundred sixteen thousand, nine hundred twenty-eight".