820206118 has 12 divisors (see below), whose sum is σ = 1257049692. Its totient is φ = 401375300.

The previous prime is 820206113. The next prime is 820206119. The reversal of 820206118 is 811602028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820206113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88408 + ... + 97243.

It is an arithmetic number, because the mean of its divisors is an integer number (104754141).

Almost surely, 2^820206118 is an apocalyptic number.

820206118 is a deficient number, since it is larger than the sum of its proper divisors (436843574).

820206118 is a wasteful number, since it uses less digits than its factorization.

820206118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185747 (or 185700 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 820206118 is about 28639.2408768110. The cubic root of 820206118 is about 936.0685803051.

The spelling of 820206118 in words is "eight hundred twenty million, two hundred six thousand, one hundred eighteen".