163465555 has 12 divisors (see below), whose sum is σ = 215613216. Its totient is φ = 118883600.

The previous prime is 163465553. The next prime is 163465619. The reversal of 163465555 is 555564361.

It is not a de Polignac number, because 163465555 - 2¹ = 163465553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163465553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134491 + ... + 135700.

It is an arithmetic number, because the mean of its divisors is an integer number (17967768).

Almost surely, 2^163465555 is an apocalyptic number.

163465555 is a deficient number, since it is larger than the sum of its proper divisors (52147661).

163465555 is a wasteful number, since it uses less digits than its factorization.

163465555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270218 (or 270207 counting only the distinct ones).

The product of its digits is 270000, while the sum is 40.

The square root of 163465555 is about 12785.3648755129. The cubic root of 163465555 is about 546.7751282330.

The spelling of 163465555 in words is "one hundred sixty-three million, four hundred sixty-five thousand, five hundred fifty-five".