16066658784 has 144 divisors (see below), whose sum is σ = 46881510480. Its totient is φ = 4813670400.

The previous prime is 16066658753. The next prime is 16066658833. The reversal of 16066658784 is 48785666061.

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, 1026054 + ... + 1041594.

It is an arithmetic number, because the mean of its divisors is an integer number (325566045).

Almost surely, 2^16066658784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16066658784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23440755240).

16066658784 is an abundant number, since it is smaller than the sum of its proper divisors (30814851696).

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

16066658784 is a wasteful number, since it uses less digits than its factorization.

16066658784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665 (or 15646 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 16066658784 in words is "sixteen billion, sixty-six million, six hundred fifty-eight thousand, seven hundred eighty-four".