206554161 has 8 divisors (see below), whose sum is σ = 300442464. Its totient is φ = 125184320.

The previous prime is 206554141. The next prime is 206554163. The reversal of 206554161 is 161455602.

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 206554161 - 2⁵ = 206554129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206554163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3129576 + ... + 3129641.

It is an arithmetic number, because the mean of its divisors is an integer number (37555308).

Almost surely, 2^206554161 is an apocalyptic number.

It is an amenable number.

206554161 is a deficient number, since it is larger than the sum of its proper divisors (93888303).

206554161 is a wasteful number, since it uses less digits than its factorization.

206554161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259231.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 206554161 is about 14371.9922418571. The cubic root of 206554161 is about 591.1231702651.

It can be divided in two parts, 2065541 and 61, that added together give a palindrome (2065602).

The spelling of 206554161 in words is "two hundred six million, five hundred fifty-four thousand, one hundred sixty-one".