66494264 has 16 divisors (see below), whose sum is σ = 125575800. Its totient is φ = 33007392.

The previous prime is 66494261. The next prime is 66494321. The reversal of 66494264 is 46249466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66494261) 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 in 3 ways as a sum of consecutive naturals, for example, 28787 + ... + 31010.

Almost surely, 2^66494264 is an apocalyptic number.

It is an amenable number.

66494264 is a deficient number, since it is larger than the sum of its proper divisors (59081536).

66494264 is a wasteful number, since it uses less digits than its factorization.

66494264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59942 (or 59938 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

The square root of 66494264 is about 8154.4015108406. The cubic root of 66494264 is about 405.1303020246.

The spelling of 66494264 in words is "sixty-six million, four hundred ninety-four thousand, two hundred sixty-four".