16005320801001 has 48 divisors (see below), whose sum is σ = 27660048159744. Its totient is φ = 8719753708512.

The previous prime is 16005320800979. The next prime is 16005320801003. The reversal of 16005320801001 is 10010802350061.

16005320801001 is a `hidden beast` number, since 1 + 600 + 53 + 2 + 0 + 8 + 0 + 1 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 16005320801001 - 2¹⁴ = 16005320784617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16005320801003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17545011 + ... + 18434696.

It is an arithmetic number, because the mean of its divisors is an integer number (576251003328).

Almost surely, 2^{16005320801001} is an apocalyptic number.

It is an amenable number.

16005320801001 is a deficient number, since it is larger than the sum of its proper divisors (11654727358743).

16005320801001 is a wasteful number, since it uses less digits than its factorization.

16005320801001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35980050 (or 35980047 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 16005320801001 in words is "sixteen trillion, five billion, three hundred twenty million, eight hundred one thousand, one".