66461116 has 6 divisors (see below), whose sum is σ = 116306960. Its totient is φ = 33230556.

The previous prime is 66461113. The next prime is 66461137. The reversal of 66461116 is 61116466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66461113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8307636 + ... + 8307643.

Almost surely, 2^66461116 is an apocalyptic number.

It is an amenable number.

66461116 is a deficient number, since it is larger than the sum of its proper divisors (49845844).

66461116 is a wasteful number, since it uses less digits than its factorization.

66461116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16615283 (or 16615281 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 66461116 is about 8152.3687355271. The cubic root of 66461116 is about 405.0629704454.

The spelling of 66461116 in words is "sixty-six million, four hundred sixty-one thousand, one hundred sixteen".