16120571066 has 8 divisors (see below), whose sum is σ = 24186103284. Its totient is φ = 8058536640.

The previous prime is 16120571063. The next prime is 16120571083. The reversal of 16120571066 is 66017502161.

16120571066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15874740025 + 245831041 = 125995^2 + 15679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16120571066² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16120571063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862895 + ... + 881378.

Almost surely, 2^16120571066 is an apocalyptic number.

16120571066 is a deficient number, since it is larger than the sum of its proper divisors (8065532218).

16120571066 is a wasteful number, since it uses less digits than its factorization.

16120571066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748896.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 16120571066 in words is "sixteen billion, one hundred twenty million, five hundred seventy-one thousand, sixty-six".