206105056012 has 12 divisors (see below), whose sum is σ = 360687062736. Its totient is φ = 103051609520.

The previous prime is 206105056009. The next prime is 206105056021. The reversal of 206105056012 is 210650501602.

It is a super-2 number, since 2×206105056012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647793 + ... + 912055.

It is an arithmetic number, because the mean of its divisors is an integer number (30057255228).

Almost surely, 2^206105056012 is an apocalyptic number.

It is an amenable number.

206105056012 is a deficient number, since it is larger than the sum of its proper divisors (154582006724).

206105056012 is a wasteful number, since it uses less digits than its factorization.

206105056012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459248 (or 459246 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 206105056012 its reverse (210650501602), we get a palindrome (416755557614).

The spelling of 206105056012 in words is "two hundred six billion, one hundred five million, fifty-six thousand, twelve".