163311055 has 4 divisors (see below), whose sum is σ = 195973272. Its totient is φ = 130648840.

The previous prime is 163311047. The next prime is 163311089. The reversal of 163311055 is 550113361.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 163311055 - 2³ = 163311047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16331101 + ... + 16331110.

It is an arithmetic number, because the mean of its divisors is an integer number (48993318).

Almost surely, 2^163311055 is an apocalyptic number.

163311055 is a deficient number, since it is larger than the sum of its proper divisors (32662217).

163311055 is an equidigital number, since it uses as much as digits as its factorization.

163311055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32662216.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 163311055 is about 12779.3213826087. The cubic root of 163311055 is about 546.6028118373.

The spelling of 163311055 in words is "one hundred sixty-three million, three hundred eleven thousand, fifty-five".