206155012 has 24 divisors (see below), whose sum is σ = 412614720. Its totient is φ = 88286880.

The previous prime is 206155007. The next prime is 206155057. The reversal of 206155012 is 210551602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69414 + ... + 72322.

It is an arithmetic number, because the mean of its divisors is an integer number (17192280).

Almost surely, 2^206155012 is an apocalyptic number.

It is an amenable number.

206155012 is an abundant number, since it is smaller than the sum of its proper divisors (206459708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206155012 is a wasteful number, since it uses less digits than its factorization.

206155012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5451 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 206155012 is about 14358.0991778160. The cubic root of 206155012 is about 590.7421590301.

The spelling of 206155012 in words is "two hundred six million, one hundred fifty-five thousand, twelve".