231804696338665 has 4 divisors (see below), whose sum is σ = 278165635606404. Its totient is φ = 185443757070928.

The previous prime is 231804696338647. The next prime is 231804696338687. The reversal of 231804696338665 is 566833696408132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138069362085264 + 93735334253401 = 11750292^2 + 9681701^2 .

It is a cyclic number.

It is not a de Polignac number, because 231804696338665 - 2²¹ = 231804694241513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231804696338594 and 231804696338603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23180469633862 + ... + 23180469633871.

It is an arithmetic number, because the mean of its divisors is an integer number (69541408901601).

Almost surely, 2^{231804696338665} is an apocalyptic number.

It is an amenable number.

231804696338665 is a deficient number, since it is larger than the sum of its proper divisors (46360939267739).

231804696338665 is an equidigital number, since it uses as much as digits as its factorization.

231804696338665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46360939267738.

The product of its (nonzero) digits is 806215680, while the sum is 70.

The spelling of 231804696338665 in words is "two hundred thirty-one trillion, eight hundred four billion, six hundred ninety-six million, three hundred thirty-eight thousand, six hundred sixty-five".