66101312 has 14 divisors (see below), whose sum is σ = 131169918. Its totient is φ = 33050624.

The previous prime is 66101303. The next prime is 66101327. The reversal of 66101312 is 21310166.

It can be written as a sum of positive squares in only one way, i.e., 50922496 + 15178816 = 7136^2 + 3896^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516353 + ... + 516480.

Almost surely, 2^66101312 is an apocalyptic number.

It is an amenable number.

66101312 is a deficient number, since it is larger than the sum of its proper divisors (65068606).

66101312 is a wasteful number, since it uses less digits than its factorization.

66101312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032845 (or 1032835 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 66101312 is about 8130.2713361855. The cubic root of 66101312 is about 404.3306772105.

Adding to 66101312 its reverse (21310166), we get a palindrome (87411478).

The spelling of 66101312 in words is "sixty-six million, one hundred one thousand, three hundred twelve".