506501221330023 has 32 divisors (see below), whose sum is σ = 688184267443200. Its totient is φ = 331298535824256.

The previous prime is 506501221330019. The next prime is 506501221330031. The reversal of 506501221330023 is 320033122105605.

It is not a de Polignac number, because 506501221330023 - 2² = 506501221330019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506501121330023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78019861 + ... + 84262097.

It is an arithmetic number, because the mean of its divisors is an integer number (21505758357600).

Almost surely, 2^{506501221330023} is an apocalyptic number.

506501221330023 is a deficient number, since it is larger than the sum of its proper divisors (181683046113177).

506501221330023 is a wasteful number, since it uses less digits than its factorization.

506501221330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6244471.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 506501221330023 its reverse (320033122105605), we get a palindrome (826534343435628).

The spelling of 506501221330023 in words is "five hundred six trillion, five hundred one billion, two hundred twenty-one million, three hundred thirty thousand, twenty-three".