16005605066004 has 48 divisors (see below), whose sum is σ = 38553118414272. Its totient is φ = 5165011041792.

The previous prime is 16005605065979. The next prime is 16005605066039. The reversal of 16005605066004 is 40066050650061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137192199 + ... + 137308814.

It is an arithmetic number, because the mean of its divisors is an integer number (803189966964).

Almost surely, 2^{16005605066004} is an apocalyptic number.

It is an amenable number.

16005605066004 is an abundant number, since it is smaller than the sum of its proper divisors (22547513348268).

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

16005605066004 is a wasteful number, since it uses less digits than its factorization.

16005605066004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274501176 (or 274501174 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 16005605066004 in words is "sixteen trillion, five billion, six hundred five million, sixty-six thousand, four".