206408804602 has 64 divisors (see below), whose sum is σ = 421559728128. Its totient is φ = 73187352000.

The previous prime is 206408804587. The next prime is 206408804621.

206408804602 is nontrivially palindromic in base 10.

206408804602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583924 + ... + 868207.

It is an arithmetic number, because the mean of its divisors is an integer number (6586870752).

Almost surely, 2^206408804602 is an apocalyptic number.

206408804602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

206408804602 is an abundant number, since it is smaller than the sum of its proper divisors (215150923526).

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

206408804602 is a wasteful number, since it uses less digits than its factorization.

206408804602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452235.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 206408804602 in words is "two hundred six billion, four hundred eight million, eight hundred four thousand, six hundred two".