66411316 has 12 divisors (see below), whose sum is σ = 123056388. Its totient is φ = 31252352.

The previous prime is 66411277. The next prime is 66411353. The reversal of 66411316 is 61311466.

It can be written as a sum of positive squares in 2 ways, for example, as 40908816 + 25502500 = 6396^2 + 5050^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488251 + ... + 488386.

It is an arithmetic number, because the mean of its divisors is an integer number (10254699).

Almost surely, 2^66411316 is an apocalyptic number.

It is an amenable number.

66411316 is a deficient number, since it is larger than the sum of its proper divisors (56645072).

66411316 is a wasteful number, since it uses less digits than its factorization.

66411316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976658 (or 976656 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 66411316 is about 8149.3138361460. The cubic root of 66411316 is about 404.9617725439.

The spelling of 66411316 in words is "sixty-six million, four hundred eleven thousand, three hundred sixteen".