533566231120644 has 96 divisors (see below), whose sum is σ = 1314765525964800. Its totient is φ = 167947948143360.

The previous prime is 533566231120631. The next prime is 533566231120697. The reversal of 533566231120644 is 446021132665335.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3046616472 + ... + 3046791600.

It is an arithmetic number, because the mean of its divisors is an integer number (13695474228800).

Almost surely, 2^{533566231120644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 533566231120644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657382762982400).

533566231120644 is an abundant number, since it is smaller than the sum of its proper divisors (781199294844156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

533566231120644 is a wasteful number, since it uses less digits than its factorization.

533566231120644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218433 (or 218431 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 51.

Adding to 533566231120644 its reverse (446021132665335), we get a palindrome (979587363785979).

The spelling of 533566231120644 in words is "five hundred thirty-three trillion, five hundred sixty-six billion, two hundred thirty-one million, one hundred twenty thousand, six hundred forty-four".