206117574340 has 12 divisors (see below), whose sum is σ = 432846906156. Its totient is φ = 82447029728.

The previous prime is 206117574337. The next prime is 206117574343. The reversal of 206117574340 is 43475711602.

206117574340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (206117574337) and next prime (206117574343).

It can be written as a sum of positive squares in 2 ways, for example, as 113186490624 + 92931083716 = 336432^2 + 304846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206117574293 and 206117574302.

It is not an unprimeable number, because it can be changed into a prime (206117574343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5152939339 + ... + 5152939378.

It is an arithmetic number, because the mean of its divisors is an integer number (36070575513).

Almost surely, 2^206117574340 is an apocalyptic number.

206117574340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206117574340 is an abundant number, since it is smaller than the sum of its proper divisors (226729331816).

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

206117574340 is a wasteful number, since it uses less digits than its factorization.

206117574340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305878726 (or 10305878724 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 206117574340 in words is "two hundred six billion, one hundred seventeen million, five hundred seventy-four thousand, three hundred forty".