206156052514111 has 16 divisors (see below), whose sum is σ = 240483002886400. Its totient is φ = 176655368617560.

The previous prime is 206156052514063. The next prime is 206156052514151. The reversal of 206156052514111 is 111415250651602.

It is a happy number.

It is not a de Polignac number, because 206156052514111 - 2²⁹ = 206155515643199 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 (206156052514151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83508225 + ... + 85941466.

It is an arithmetic number, because the mean of its divisors is an integer number (15030187680400).

Almost surely, 2^{206156052514111} is an apocalyptic number.

206156052514111 is a deficient number, since it is larger than the sum of its proper divisors (34326950372289).

206156052514111 is an equidigital number, since it uses as much as digits as its factorization.

206156052514111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169453259 (or 169453245 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 206156052514111 in words is "two hundred six trillion, one hundred fifty-six billion, fifty-two million, five hundred fourteen thousand, one hundred eleven".