206036811 has 16 divisors (see below), whose sum is σ = 311001120. Its totient is φ = 134765280.

The previous prime is 206036807. The next prime is 206036813. The reversal of 206036811 is 118630602.

It is not a de Polignac number, because 206036811 - 2² = 206036807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (206036813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70560 + ... + 73421.

It is an arithmetic number, because the mean of its divisors is an integer number (19437570).

Almost surely, 2^206036811 is an apocalyptic number.

206036811 is a deficient number, since it is larger than the sum of its proper divisors (104964309).

206036811 is a wasteful number, since it uses less digits than its factorization.

206036811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144043 (or 144037 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 206036811 is about 14353.9824090738. The cubic root of 206036811 is about 590.6292348399.

The spelling of 206036811 in words is "two hundred six million, thirty-six thousand, eight hundred eleven".