163456066 has 4 divisors (see below), whose sum is σ = 245184102. Its totient is φ = 81728032.

The previous prime is 163456063. The next prime is 163456067. The reversal of 163456066 is 660654361.

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

It can be written as a sum of positive squares in only one way, i.e., 154629225 + 8826841 = 12435^2 + 2971^2 .

It is not an unprimeable number, because it can be changed into a prime (163456063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40864015 + ... + 40864018.

Almost surely, 2^163456066 is an apocalyptic number.

163456066 is a deficient number, since it is larger than the sum of its proper divisors (81728036).

163456066 is an equidigital number, since it uses as much as digits as its factorization.

163456066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81728035.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 163456066 is about 12784.9937817740. The cubic root of 163456066 is about 546.7645481252.

The spelling of 163456066 in words is "one hundred sixty-three million, four hundred fifty-six thousand, sixty-six".