163621241222432 has 48 divisors (see below), whose sum is σ = 370016563371840. Its totient is φ = 69767432786688.

The previous prime is 163621241222423. The next prime is 163621241222501. The reversal of 163621241222432 is 234222142126361.

It is a self number, because there is not a number n which added to its sum of digits gives 163621241222432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853894882 + ... + 1853983137.

It is an arithmetic number, because the mean of its divisors is an integer number (7708678403580).

Almost surely, 2^{163621241222432} is an apocalyptic number.

It is an amenable number.

163621241222432 is an abundant number, since it is smaller than the sum of its proper divisors (206395322149408).

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

163621241222432 is a wasteful number, since it uses less digits than its factorization.

163621241222432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707878233 (or 3707878225 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

Adding to 163621241222432 its reverse (234222142126361), we get a palindrome (397843383348793).

The spelling of 163621241222432 in words is "one hundred sixty-three trillion, six hundred twenty-one billion, two hundred forty-one million, two hundred twenty-two thousand, four hundred thirty-two".