163385541 has 24 divisors (see below), whose sum is σ = 271009440. Its totient is φ = 93808800.

The previous prime is 163385477. The next prime is 163385543. The reversal of 163385541 is 145583361.

163385541 is a `hidden beast` number, since 1 + 6 + 33 + 85 + 541 = 666.

It is not a de Polignac number, because 163385541 - 2⁶ = 163385477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163385496 and 163385505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163385543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41550 + ... + 45311.

It is an arithmetic number, because the mean of its divisors is an integer number (11292060).

Almost surely, 2^163385541 is an apocalyptic number.

163385541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163385541 is a deficient number, since it is larger than the sum of its proper divisors (107623899).

163385541 is a wasteful number, since it uses less digits than its factorization.

163385541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86897 (or 86894 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 163385541 is about 12782.2353678846. The cubic root of 163385541 is about 546.6859008617.

The spelling of 163385541 in words is "one hundred sixty-three million, three hundred eighty-five thousand, five hundred forty-one".