163065450 has 48 divisors (see below), whose sum is σ = 406268640. Its totient is φ = 43283520.

The previous prime is 163065433. The next prime is 163065457. The reversal of 163065450 is 54560361.

163065450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163065457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31656 + ... + 36444.

It is an arithmetic number, because the mean of its divisors is an integer number (8463930).

Almost surely, 2^163065450 is an apocalyptic number.

163065450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163065450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203134320).

163065450 is an abundant number, since it is smaller than the sum of its proper divisors (243203190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163065450 is a wasteful number, since it uses less digits than its factorization.

163065450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031 (or 5026 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 163065450 is about 12769.7082973731. The cubic root of 163065450 is about 546.3286606905.

The spelling of 163065450 in words is "one hundred sixty-three million, sixty-five thousand, four hundred fifty".