206466105252 has 24 divisors (see below), whose sum is σ = 525550086432. Its totient is φ = 62565486400.

The previous prime is 206466105227. The next prime is 206466105269. The reversal of 206466105252 is 252501664602.

It is a self number, because there is not a number n which added to its sum of digits gives 206466105252.

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, 782068449 + ... + 782068712.

It is an arithmetic number, because the mean of its divisors is an integer number (21897920268).

Almost surely, 2^206466105252 is an apocalyptic number.

206466105252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

206466105252 is an abundant number, since it is smaller than the sum of its proper divisors (319083981180).

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

206466105252 is a wasteful number, since it uses less digits than its factorization.

206466105252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564137179 (or 1564137177 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 206466105252 its reverse (252501664602), we get a palindrome (458967769854).

The spelling of 206466105252 in words is "two hundred six billion, four hundred sixty-six million, one hundred five thousand, two hundred fifty-two".