164312066 has 8 divisors (see below), whose sum is σ = 247526604. Its totient is φ = 81803200.

The previous prime is 164312063. The next prime is 164312077. The reversal of 164312066 is 660213461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138556441 + 25755625 = 11771^2 + 5075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (164312063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175835 + ... + 176766.

Almost surely, 2^164312066 is an apocalyptic number.

164312066 is a deficient number, since it is larger than the sum of its proper divisors (83214538).

164312066 is a wasteful number, since it uses less digits than its factorization.

164312066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352836.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 164312066 is about 12818.4268145510. The cubic root of 164312066 is about 547.7173338425.

The spelling of 164312066 in words is "one hundred sixty-four million, three hundred twelve thousand, sixty-six".