66164234 has 4 divisors (see below), whose sum is σ = 99246354. Its totient is φ = 33082116.

The previous prime is 66164183. The next prime is 66164239. The reversal of 66164234 is 43246166.

66164234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 65529025 + 635209 = 8095^2 + 797^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66164234.

It is not an unprimeable number, because it can be changed into a prime (66164239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16541057 + ... + 16541060.

Almost surely, 2^66164234 is an apocalyptic number.

66164234 is a deficient number, since it is larger than the sum of its proper divisors (33082120).

66164234 is a wasteful number, since it uses less digits than its factorization.

66164234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33082119.

The product of its digits is 20736, while the sum is 32.

The square root of 66164234 is about 8134.1400283005. The cubic root of 66164234 is about 404.4589309765.

The spelling of 66164234 in words is "sixty-six million, one hundred sixty-four thousand, two hundred thirty-four".