206023564136143 has 16 divisors (see below), whose sum is σ = 234923782838976. Its totient is φ = 178988046773760.

The previous prime is 206023564136129. The next prime is 206023564136167. The reversal of 206023564136143 is 341631465320602.

It is a cyclic number.

It is not a de Polignac number, because 206023564136143 - 2³⁷ = 205886125182671 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206023564136093 and 206023564136102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206023564136123) 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, 54513630 + ... + 58170292.

It is an arithmetic number, because the mean of its divisors is an integer number (14682736427436).

Almost surely, 2^{206023564136143} is an apocalyptic number.

206023564136143 is a deficient number, since it is larger than the sum of its proper divisors (28900218702833).

206023564136143 is a wasteful number, since it uses less digits than its factorization.

206023564136143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911634.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 206023564136143 in words is "two hundred six trillion, twenty-three billion, five hundred sixty-four million, one hundred thirty-six thousand, one hundred forty-three".