206225243136566 has 32 divisors (see below), whose sum is σ = 310217514190848. Its totient is φ = 102819839477760.

The previous prime is 206225243136527. The next prime is 206225243136611. The reversal of 206225243136566 is 665631342522602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14133721931 + ... + 14133736521.

It is an arithmetic number, because the mean of its divisors is an integer number (9694297318464).

Almost surely, 2^{206225243136566} is an apocalyptic number.

206225243136566 is a deficient number, since it is larger than the sum of its proper divisors (103992271054282).

206225243136566 is a wasteful number, since it uses less digits than its factorization.

206225243136566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28136.

The product of its (nonzero) digits is 18662400, while the sum is 53.

The spelling of 206225243136566 in words is "two hundred six trillion, two hundred twenty-five billion, two hundred forty-three million, one hundred thirty-six thousand, five hundred sixty-six".