206111352605 has 16 divisors (see below), whose sum is σ = 249183416064. Its totient is φ = 163660150080.

The previous prime is 206111352599. The next prime is 206111352631. The reversal of 206111352605 is 506253111602.

It is not a de Polignac number, because 206111352605 - 2⁶ = 206111352541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121019 + ... + 653351.

It is an arithmetic number, because the mean of its divisors is an integer number (15573963504).

Almost surely, 2^206111352605 is an apocalyptic number.

It is an amenable number.

206111352605 is a deficient number, since it is larger than the sum of its proper divisors (43072063459).

206111352605 is a wasteful number, since it uses less digits than its factorization.

206111352605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532916.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 206111352605 in words is "two hundred six billion, one hundred eleven million, three hundred fifty-two thousand, six hundred five".