206526666250242 has 64 divisors (see below), whose sum is σ = 498625761231360. Its totient is φ = 62984306633472.

The previous prime is 206526666250217. The next prime is 206526666250249. The reversal of 206526666250242 is 242052666625602.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (206526666250249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1301679658 + ... + 1301838309.

It is an arithmetic number, because the mean of its divisors is an integer number (7791027519240).

Almost surely, 2^{206526666250242} is an apocalyptic number.

206526666250242 is an abundant number, since it is smaller than the sum of its proper divisors (292099094981118).

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

206526666250242 is a wasteful number, since it uses less digits than its factorization.

206526666250242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603518104 (or 2603518098 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 206526666250242 in words is "two hundred six trillion, five hundred twenty-six billion, six hundred sixty-six million, two hundred fifty thousand, two hundred forty-two".