163304525553 has 16 divisors (see below), whose sum is σ = 234534396096. Its totient is φ = 100475444160.

The previous prime is 163304525521. The next prime is 163304525557. The reversal of 163304525553 is 355525403361.

163304525553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163304525553 - 2⁵ = 163304525521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163304525557) 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 15 ways as a sum of consecutive naturals, for example, 206038 + ... + 607503.

It is an arithmetic number, because the mean of its divisors is an integer number (14658399756).

Almost surely, 2^163304525553 is an apocalyptic number.

163304525553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163304525553 is a deficient number, since it is larger than the sum of its proper divisors (71229870543).

163304525553 is a wasteful number, since it uses less digits than its factorization.

163304525553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818704.

The product of its (nonzero) digits is 810000, while the sum is 42.

The spelling of 163304525553 in words is "one hundred sixty-three billion, three hundred four million, five hundred twenty-five thousand, five hundred fifty-three".