16606144057 has 8 divisors (see below), whose sum is σ = 16626282120. Its totient is φ = 16586021760.

The previous prime is 16606144033. The next prime is 16606144091. The reversal of 16606144057 is 75044160661.

It can be written as a sum of positive squares in 4 ways, for example, as 316982416 + 16289161641 = 17804^2 + 127629^2 .

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 16606144057 - 2⁷ = 16606143929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16606144657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4898319 + ... + 4901707.

It is an arithmetic number, because the mean of its divisors is an integer number (2078285265).

Almost surely, 2^16606144057 is an apocalyptic number.

It is an amenable number.

16606144057 is a deficient number, since it is larger than the sum of its proper divisors (20138063).

16606144057 is a wasteful number, since it uses less digits than its factorization.

16606144057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 16606144057 in words is "sixteen billion, six hundred six million, one hundred forty-four thousand, fifty-seven".