16564160545001 has 4 divisors (see below), whose sum is σ = 16669664752452. Its totient is φ = 16458656337552.

The previous prime is 16564160544991. The next prime is 16564160545007. The reversal of 16564160545001 is 10054506146561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4612958928400 + 11951201616601 = 2147780^2 + 3457051^2 .

It is a cyclic number.

It is not a de Polignac number, because 16564160545001 - 2¹⁰ = 16564160543977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16564160545007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52752103490 + ... + 52752103803.

It is an arithmetic number, because the mean of its divisors is an integer number (4167416188113).

Almost surely, 2^{16564160545001} is an apocalyptic number.

It is an amenable number.

16564160545001 is a deficient number, since it is larger than the sum of its proper divisors (105504207451).

16564160545001 is a wasteful number, since it uses less digits than its factorization.

16564160545001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105504207450.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 16564160545001 in words is "sixteen trillion, five hundred sixty-four billion, one hundred sixty million, five hundred forty-five thousand, one".