16178406912 has 160 divisors (see below), whose sum is σ = 47978700000. Its totient is φ = 5382733824.

The previous prime is 16178406899. The next prime is 16178406941. The reversal of 16178406912 is 21960487161.

16178406912 is a `hidden beast` number, since 161 + 78 + 406 + 9 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12952464 + ... + 12953712.

It is an arithmetic number, because the mean of its divisors is an integer number (299866875).

Almost surely, 2^16178406912 is an apocalyptic number.

16178406912 is a gapful number since it is divisible by the number (12) 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 16178406912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23989350000).

16178406912 is an abundant number, since it is smaller than the sum of its proper divisors (31800293088).

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

16178406912 is an equidigital number, since it uses as much as digits as its factorization.

16178406912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 16178406912 in words is "sixteen billion, one hundred seventy-eight million, four hundred six thousand, nine hundred twelve".