16607405808 has 480 divisors, whose sum is σ = 59836805120. Its totient is φ = 4314746880.

The previous prime is 16607405807. The next prime is 16607405827. The reversal of 16607405808 is 80850470661.

It is a happy number.

16607405808 is a `hidden beast` number, since 1 + 6 + 60 + 7 + 4 + 0 + 580 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16607405807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27091710 + ... + 27092322.

Almost surely, 2^16607405808 is an apocalyptic number.

16607405808 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 16607405808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29918402560).

16607405808 is an abundant number, since it is smaller than the sum of its proper divisors (43229399312).

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

16607405808 is a wasteful number, since it uses less digits than its factorization.

16607405808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 16607405808 in words is "sixteen billion, six hundred seven million, four hundred five thousand, eight hundred eight".