206161066 has 8 divisors (see below), whose sum is σ = 309625344. Its totient is φ = 102952620.

The previous prime is 206161061. The next prime is 206161069. The reversal of 206161066 is 660161602.

206161066 = T₂₆₈ + T₂₆₉ + ... + T₁₀₇₈.

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

It is not an unprimeable number, because it can be changed into a prime (206161061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61930 + ... + 65173.

It is an arithmetic number, because the mean of its divisors is an integer number (38703168).

Almost surely, 2^206161066 is an apocalyptic number.

206161066 is a deficient number, since it is larger than the sum of its proper divisors (103464278).

206161066 is a wasteful number, since it uses less digits than its factorization.

206161066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127916.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 206161066 is about 14358.3099980464. The cubic root of 206161066 is about 590.7479416012.

The spelling of 206161066 in words is "two hundred six million, one hundred sixty-one thousand, sixty-six".