16051605006561 has 16 divisors (see below), whose sum is σ = 21545492293248. Its totient is φ = 10629404496000.

The previous prime is 16051605006557. The next prime is 16051605006589. The reversal of 16051605006561 is 16560050615061.

It is not a de Polignac number, because 16051605006561 - 2² = 16051605006557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16051605006461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4746381 + ... + 7391301.

It is an arithmetic number, because the mean of its divisors is an integer number (1346593268328).

Almost surely, 2^{16051605006561} is an apocalyptic number.

It is an amenable number.

16051605006561 is a deficient number, since it is larger than the sum of its proper divisors (5493887286687).

16051605006561 is a wasteful number, since it uses less digits than its factorization.

16051605006561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658472.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 16051605006561 in words is "sixteen trillion, fifty-one billion, six hundred five million, six thousand, five hundred sixty-one".