16634612736 has 704 divisors, whose sum is σ = 60934440960. Its totient is φ = 4379443200.

The previous prime is 16634612717. The next prime is 16634612779. The reversal of 16634612736 is 63721643661.

16634612736 is a `hidden beast` number, since 1 + 6 + 634 + 6 + 1 + 2 + 7 + 3 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 16634612691 and 16634612700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164699086 + ... + 164699186.

Almost surely, 2^16634612736 is an apocalyptic number.

16634612736 is a gapful number since it is divisible by the number (16) 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 16634612736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30467220480).

16634612736 is an abundant number, since it is smaller than the sum of its proper divisors (44299828224).

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

16634612736 is a wasteful number, since it uses less digits than its factorization.

16634612736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 173 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 16634612736 in words is "sixteen billion, six hundred thirty-four million, six hundred twelve thousand, seven hundred thirty-six".