66464192 has 14 divisors (see below), whose sum is σ = 131890008. Its totient is φ = 33232064.

The previous prime is 66464191. The next prime is 66464207. The reversal of 66464192 is 29146466.

It is a happy number.

66464192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66464191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519188 + ... + 519315.

Almost surely, 2^66464192 is an apocalyptic number.

It is an amenable number.

66464192 is a deficient number, since it is larger than the sum of its proper divisors (65425816).

66464192 is a wasteful number, since it uses less digits than its factorization.

66464192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038515 (or 1038505 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 66464192 is about 8152.5573901691. The cubic root of 66464192 is about 405.0692194852.

The spelling of 66464192 in words is "sixty-six million, four hundred sixty-four thousand, one hundred ninety-two".