163103534420553 has 6 divisors (see below), whose sum is σ = 235593994163034. Its totient is φ = 108735689613696.

The previous prime is 163103534420513. The next prime is 163103534420597. The reversal of 163103534420553 is 355024435301361.

163103534420553 is a `hidden beast` number, since 1 + 6 + 3 + 1 + 0 + 3 + 53 + 4 + 42 + 0 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 139887201521664 + 23216332898889 = 11827392^2 + 4818333^2 .

It is not a de Polignac number, because 163103534420553 - 2²¹ = 163103532323401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163103534420499 and 163103534420508.

It is not an unprimeable number, because it can be changed into a prime (163103534420513) 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 5 ways as a sum of consecutive naturals, for example, 9061307467800 + ... + 9061307467817.

It is an arithmetic number, because the mean of its divisors is an integer number (39265665693839).

Almost surely, 2^{163103534420553} is an apocalyptic number.

It is an amenable number.

163103534420553 is a deficient number, since it is larger than the sum of its proper divisors (72490459742481).

163103534420553 is a wasteful number, since it uses less digits than its factorization.

163103534420553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18122614935623 (or 18122614935620 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 163103534420553 in words is "one hundred sixty-three trillion, one hundred three billion, five hundred thirty-four million, four hundred twenty thousand, five hundred fifty-three".