522168838081 has 8 divisors (see below), whose sum is σ = 570175633728. Its totient is φ = 474251526000.

The previous prime is 522168838073. The next prime is 522168838109. The reversal of 522168838081 is 180838861225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522168838081 - 2³ = 522168838073 is a prime.

It is a super-2 number, since 2×522168838081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522168838001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22358685 + ... + 22382026.

It is an arithmetic number, because the mean of its divisors is an integer number (71271954216).

Almost surely, 2^522168838081 is an apocalyptic number.

It is an amenable number.

522168838081 is a deficient number, since it is larger than the sum of its proper divisors (48006795647).

522168838081 is a wasteful number, since it uses less digits than its factorization.

522168838081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44741783.

The product of its (nonzero) digits is 1474560, while the sum is 52.

The spelling of 522168838081 in words is "five hundred twenty-two billion, one hundred sixty-eight million, eight hundred thirty-eight thousand, eighty-one".