206344652051 has 4 divisors (see below), whose sum is σ = 206352565704. Its totient is φ = 206336738400.

The previous prime is 206344652047. The next prime is 206344652071. The reversal of 206344652051 is 150256443602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150256443602 = 2 ⋅75128221801.

It is a cyclic number.

It is not a de Polignac number, because 206344652051 - 2² = 206344652047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206344651996 and 206344652014.

It is not an unprimeable number, because it can be changed into a prime (206344652011) 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, 3917585 + ... + 3969906.

It is an arithmetic number, because the mean of its divisors is an integer number (51588141426).

Almost surely, 2^206344652051 is an apocalyptic number.

206344652051 is a deficient number, since it is larger than the sum of its proper divisors (7913653).

206344652051 is an equidigital number, since it uses as much as digits as its factorization.

206344652051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913652.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 206344652051 in words is "two hundred six billion, three hundred forty-four million, six hundred fifty-two thousand, fifty-one".