206602065947 has 4 divisors (see below), whose sum is σ = 206603432136. Its totient is φ = 206600699760.

The previous prime is 206602065941. The next prime is 206602065979. The reversal of 206602065947 is 749560206602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749560206602 = 2 ⋅374780103301.

It is a cyclic number.

It is not a de Polignac number, because 206602065947 - 2¹⁰ = 206602064923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206602065941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423329 + ... + 769682.

It is an arithmetic number, because the mean of its divisors is an integer number (51650858034).

Almost surely, 2^206602065947 is an apocalyptic number.

206602065947 is a deficient number, since it is larger than the sum of its proper divisors (1366189).

206602065947 is a wasteful number, since it uses less digits than its factorization.

206602065947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366188.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 206602065947 in words is "two hundred six billion, six hundred two million, sixty-five thousand, nine hundred forty-seven".