16664549760 has 192 divisors, whose sum is σ = 57637878480. Its totient is φ = 4436692992.

The previous prime is 16664549723. The next prime is 16664549771. The reversal of 16664549760 is 6794546661.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 16664549697 and 16664549706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4220107 + ... + 4224053.

Almost surely, 2^16664549760 is an apocalyptic number.

16664549760 is a gapful number since it is divisible by the number (10) 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 16664549760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28818939240).

16664549760 is an abundant number, since it is smaller than the sum of its proper divisors (40973328720).

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

16664549760 is a wasteful number, since it uses less digits than its factorization.

16664549760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705 (or 4690 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 16664549760 in words is "sixteen billion, six hundred sixty-four million, five hundred forty-nine thousand, seven hundred sixty".