523316661133 has 4 divisors (see below), whose sum is σ = 598076184160. Its totient is φ = 448557138108.

The previous prime is 523316661121. The next prime is 523316661167. The reversal of 523316661133 is 331166613325.

It is a happy number.

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 523316661133 - 2¹³ = 523316652941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523316662133) 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, 37379761503 + ... + 37379761516.

It is an arithmetic number, because the mean of its divisors is an integer number (149519046040).

Almost surely, 2^523316661133 is an apocalyptic number.

It is an amenable number.

523316661133 is a deficient number, since it is larger than the sum of its proper divisors (74759523027).

523316661133 is an equidigital number, since it uses as much as digits as its factorization.

523316661133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74759523026.

The product of its digits is 174960, while the sum is 40.

The spelling of 523316661133 in words is "five hundred twenty-three billion, three hundred sixteen million, six hundred sixty-one thousand, one hundred thirty-three".