16304779008 has 378 divisors, whose sum is σ = 56795086824. Its totient is φ = 4655895552.

The previous prime is 16304778991. The next prime is 16304779013. The reversal of 16304779008 is 80097740361.

16304779008 is a `hidden beast` number, since 1 + 630 + 4 + 7 + 7 + 9 + 0 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (378).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 9143685 + ... + 9145467.

Almost surely, 2^16304779008 is an apocalyptic number.

16304779008 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 16304779008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28397543412).

16304779008 is an abundant number, since it is smaller than the sum of its proper divisors (40490307816).

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

16304779008 is an frugal number, since it uses more digits than its factorization.

16304779008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 16304779008 in words is "sixteen billion, three hundred four million, seven hundred seventy-nine thousand, eight".