163146520905 has 32 divisors (see below), whose sum is σ = 274944844800. Its totient is φ = 82380399552.

The previous prime is 163146520903. The next prime is 163146520913. The reversal of 163146520905 is 509025641361.

163146520905 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 163146520905 - 2¹ = 163146520903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163146520903) 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 31 ways as a sum of consecutive naturals, for example, 279886 + ... + 636104.

It is an arithmetic number, because the mean of its divisors is an integer number (8592026400).

Almost surely, 2^163146520905 is an apocalyptic number.

163146520905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163146520905 is a deficient number, since it is larger than the sum of its proper divisors (111798323895).

163146520905 is a wasteful number, since it uses less digits than its factorization.

163146520905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357853.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 163146520905 in words is "one hundred sixty-three billion, one hundred forty-six million, five hundred twenty thousand, nine hundred five".