66436314122 has 4 divisors (see below), whose sum is σ = 99654471186. Its totient is φ = 33218157060.

The previous prime is 66436314103. The next prime is 66436314137. The reversal of 66436314122 is 22141363466.

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., 52043753161 + 14392560961 = 228131^2 + 119969^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16609078529 + ... + 16609078532.

Almost surely, 2^66436314122 is an apocalyptic number.

66436314122 is a deficient number, since it is larger than the sum of its proper divisors (33218157064).

66436314122 is a wasteful number, since it uses less digits than its factorization.

66436314122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33218157063.

The product of its digits is 124416, while the sum is 38.

Adding to 66436314122 its reverse (22141363466), we get a palindrome (88577677588).

The spelling of 66436314122 in words is "sixty-six billion, four hundred thirty-six million, three hundred fourteen thousand, one hundred twenty-two".