663401215223022 has 16 divisors (see below), whose sum is σ = 1326802947074640. Its totient is φ = 221133652302912.

The previous prime is 663401215223011. The next prime is 663401215223023. The reversal of 663401215223022 is 220322512104366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663401215223023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3696997 + ... + 36612432.

It is an arithmetic number, because the mean of its divisors is an integer number (82925184192165).

Almost surely, 2^{663401215223022} is an apocalyptic number.

663401215223022 is an abundant number, since it is smaller than the sum of its proper divisors (663401731851618).

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

663401215223022 is a wasteful number, since it uses less digits than its factorization.

663401215223022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43052387.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 663401215223022 its reverse (220322512104366), we get a palindrome (883723727327388).

The spelling of 663401215223022 in words is "six hundred sixty-three trillion, four hundred one billion, two hundred fifteen million, two hundred twenty-three thousand, twenty-two".