166469246928 has 400 divisors, whose sum is σ = 518594655040. Its totient is φ = 51539016960.

The previous prime is 166469246899. The next prime is 166469246929. The reversal of 166469246928 is 829642964661.

166469246928 is a `hidden beast` number, since 1 + 6 + 64 + 6 + 92 + 469 + 28 = 666.

166469246928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (166469246929) 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 79 ways as a sum of consecutive naturals, for example, 542244951 + ... + 542245257.

Almost surely, 2^166469246928 is an apocalyptic number.

166469246928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166469246928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259297327520).

166469246928 is an abundant number, since it is smaller than the sum of its proper divisors (352125408112).

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

166469246928 is an equidigital number, since it uses as much as digits as its factorization.

166469246928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 392 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The spelling of 166469246928 in words is "one hundred sixty-six billion, four hundred sixty-nine million, two hundred forty-six thousand, nine hundred twenty-eight".