163550441512420 has 24 divisors (see below), whose sum is σ = 355299235011000. Its totient is φ = 63164308445952.

The previous prime is 163550441512309. The next prime is 163550441512483. The reversal of 163550441512420 is 24215144055361.

It can be written as a sum of positive squares in 4 ways, for example, as 12515632609536 + 151034808902884 = 3537744^2 + 12289622^2 .

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, 140991759345 + ... + 140991760504.

It is an arithmetic number, because the mean of its divisors is an integer number (14804134792125).

Almost surely, 2^{163550441512420} is an apocalyptic number.

163550441512420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163550441512420 is an abundant number, since it is smaller than the sum of its proper divisors (191748793498580).

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

163550441512420 is a wasteful number, since it uses less digits than its factorization.

163550441512420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281983519887 (or 281983519885 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

Adding to 163550441512420 its reverse (24215144055361), we get a palindrome (187765585567781).

The spelling of 163550441512420 in words is "one hundred sixty-three trillion, five hundred fifty billion, four hundred forty-one million, five hundred twelve thousand, four hundred twenty".