206113620306 has 16 divisors (see below), whose sum is σ = 449702444448. Its totient is φ = 62458672800.

The previous prime is 206113620283. The next prime is 206113620343. The reversal of 206113620306 is 603026311602.

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, 1561466755 + ... + 1561466886.

It is an arithmetic number, because the mean of its divisors is an integer number (28106402778).

Almost surely, 2^206113620306 is an apocalyptic number.

206113620306 is an abundant number, since it is smaller than the sum of its proper divisors (243588824142).

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

206113620306 is a wasteful number, since it uses less digits than its factorization.

206113620306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122933657.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 206113620306 its reverse (603026311602), we get a palindrome (809139931908).

The spelling of 206113620306 in words is "two hundred six billion, one hundred thirteen million, six hundred twenty thousand, three hundred six".