16001065556064 has 96 divisors (see below), whose sum is σ = 49126078512000. Its totient is φ = 5052968065152.

The previous prime is 16001065556011. The next prime is 16001065556291. The reversal of 16001065556064 is 46065556010061.

16001065556064 is a `hidden beast` number, since 16 + 0 + 0 + 10 + 6 + 5 + 5 + 560 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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, 487345474 + ... + 487378305.

It is an arithmetic number, because the mean of its divisors is an integer number (511729984500).

Almost surely, 2^{16001065556064} is an apocalyptic number.

It is an amenable number.

16001065556064 is an abundant number, since it is smaller than the sum of its proper divisors (33125012955936).

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

16001065556064 is a wasteful number, since it uses less digits than its factorization.

16001065556064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974723817 (or 974723803 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 16001065556064 in words is "sixteen trillion, one billion, sixty-five million, five hundred fifty-six thousand, sixty-four".