16066561633 has 8 divisors (see below), whose sum is σ = 16917296000. Its totient is φ = 15216339888.

The previous prime is 16066561631. The next prime is 16066561649. The reversal of 16066561633 is 33616566061.

16066561633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16066561633 - 2¹ = 16066561631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16066561633.

It is not an unprimeable number, because it can be changed into a prime (16066561631) 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 7 ways as a sum of consecutive naturals, for example, 62958 + ... + 189991.

It is an arithmetic number, because the mean of its divisors is an integer number (2114662000).

Almost surely, 2^16066561633 is an apocalyptic number.

It is an amenable number.

16066561633 is a deficient number, since it is larger than the sum of its proper divisors (850734367).

16066561633 is a wasteful number, since it uses less digits than its factorization.

16066561633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256311.

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 16066561633 in words is "sixteen billion, sixty-six million, five hundred sixty-one thousand, six hundred thirty-three".