16552555161 has 16 divisors (see below), whose sum is σ = 22202177088. Its totient is φ = 10969041600.

The previous prime is 16552555111. The next prime is 16552555177. The reversal of 16552555161 is 16155525561.

It is a de Polignac number, because none of the positive numbers 2^k-16552555161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16552555111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464271 + ... + 1475531.

It is an arithmetic number, because the mean of its divisors is an integer number (1387636068).

Almost surely, 2^16552555161 is an apocalyptic number.

It is an amenable number.

16552555161 is a deficient number, since it is larger than the sum of its proper divisors (5649621927).

16552555161 is a wasteful number, since it uses less digits than its factorization.

16552555161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14152.

The product of its digits is 225000, while the sum is 42.

The spelling of 16552555161 in words is "sixteen billion, five hundred fifty-two million, five hundred fifty-five thousand, one hundred sixty-one".