206432523613 has 4 divisors (see below), whose sum is σ = 206777152800. Its totient is φ = 206087894428.

The previous prime is 206432523611. The next prime is 206432523629. The reversal of 206432523613 is 316325234602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206432523613 - 2¹ = 206432523611 is a prime.

It is a super-2 number, since 2×206432523613² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206432523611) 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, 172313695 + ... + 172314892.

It is an arithmetic number, because the mean of its divisors is an integer number (51694288200).

Almost surely, 2^206432523613 is an apocalyptic number.

It is an amenable number.

206432523613 is a deficient number, since it is larger than the sum of its proper divisors (344629187).

206432523613 is an equidigital number, since it uses as much as digits as its factorization.

206432523613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344629186.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 206432523613 in words is "two hundred six billion, four hundred thirty-two million, five hundred twenty-three thousand, six hundred thirteen".