206585046660 has 24 divisors (see below), whose sum is σ = 578438130816. Its totient is φ = 55089345760.

The previous prime is 206585046559. The next prime is 206585046709. The reversal of 206585046660 is 66640585602.

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, 1721541996 + ... + 1721542115.

It is an arithmetic number, because the mean of its divisors is an integer number (24101588784).

Almost surely, 2^206585046660 is an apocalyptic number.

206585046660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206585046660 is an abundant number, since it is smaller than the sum of its proper divisors (371853084156).

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

206585046660 is a wasteful number, since it uses less digits than its factorization.

206585046660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3443084123 (or 3443084121 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 206585046660 in words is "two hundred six billion, five hundred eighty-five million, forty-six thousand, six hundred sixty".