66164122 has 4 divisors (see below), whose sum is σ = 99246186. Its totient is φ = 33082060.

The previous prime is 66164107. The next prime is 66164141. The reversal of 66164122 is 22146166.

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., 54597321 + 11566801 = 7389^2 + 3401^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16541029 + ... + 16541032.

Almost surely, 2^66164122 is an apocalyptic number.

66164122 is a deficient number, since it is larger than the sum of its proper divisors (33082064).

66164122 is a wasteful number, since it uses less digits than its factorization.

66164122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33082063.

The product of its digits is 3456, while the sum is 28.

The square root of 66164122 is about 8134.1331437345. The cubic root of 66164122 is about 404.4587027594.

The spelling of 66164122 in words is "sixty-six million, one hundred sixty-four thousand, one hundred twenty-two".