206662560100253 has 4 divisors (see below), whose sum is σ = 215647888800288. Its totient is φ = 197677231400220.

The previous prime is 206662560100247. The next prime is 206662560100291. The reversal of 206662560100253 is 352001065266602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206662560100253 - 2⁴ = 206662560100237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206662560100223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4492664349983 + ... + 4492664350028.

It is an arithmetic number, because the mean of its divisors is an integer number (53911972200072).

Almost surely, 2^{206662560100253} is an apocalyptic number.

206662560100253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

206662560100253 is a deficient number, since it is larger than the sum of its proper divisors (8985328700035).

206662560100253 is an equidigital number, since it uses as much as digits as its factorization.

206662560100253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985328700034.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 206662560100253 in words is "two hundred six trillion, six hundred sixty-two billion, five hundred sixty million, one hundred thousand, two hundred fifty-three".