206531214045 has 16 divisors (see below), whose sum is σ = 355869169152. Its totient is φ = 101676905280.

The previous prime is 206531214017. The next prime is 206531214079. The reversal of 206531214045 is 540412135602.

It is not a de Polignac number, because 206531214045 - 2¹² = 206531209949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206531213997 and 206531214015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529567021 + ... + 529567410.

It is an arithmetic number, because the mean of its divisors is an integer number (22241823072).

Almost surely, 2^206531214045 is an apocalyptic number.

It is an amenable number.

206531214045 is a deficient number, since it is larger than the sum of its proper divisors (149337955107).

206531214045 is a wasteful number, since it uses less digits than its factorization.

206531214045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059134452.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 206531214045 its reverse (540412135602), we get a palindrome (746943349647).

The spelling of 206531214045 in words is "two hundred six billion, five hundred thirty-one million, two hundred fourteen thousand, forty-five".