206228066 has 16 divisors (see below), whose sum is σ = 342089568. Its totient is φ = 92455200.

The previous prime is 206228059. The next prime is 206228083. The reversal of 206228066 is 660822602.

It is a super-2 number, since 2×206228066² = 85060030412200712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62600 + ... + 65811.

It is an arithmetic number, because the mean of its divisors is an integer number (21380598).

Almost surely, 2^206228066 is an apocalyptic number.

206228066 is a deficient number, since it is larger than the sum of its proper divisors (135861502).

206228066 is a wasteful number, since it uses less digits than its factorization.

206228066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128497.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 206228066 is about 14360.6429521801. The cubic root of 206228066 is about 590.8119301223.

The spelling of 206228066 in words is "two hundred six million, two hundred twenty-eight thousand, sixty-six".