66471046 has 4 divisors (see below), whose sum is σ = 99706572. Its totient is φ = 33235522.

The previous prime is 66471023. The next prime is 66471061. The reversal of 66471046 is 64017466.

It is a happy number.

66471046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64017466 = 2 ⋅32008733.

It is a congruent number.

It is an unprimeable number.

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, 16617760 + ... + 16617763.

It is an arithmetic number, because the mean of its divisors is an integer number (24926643).

Almost surely, 2^66471046 is an apocalyptic number.

66471046 is a deficient number, since it is larger than the sum of its proper divisors (33235526).

66471046 is a wasteful number, since it uses less digits than its factorization.

66471046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33235525.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 66471046 is about 8152.9777382255. The cubic root of 66471046 is about 405.0831430177.

The spelling of 66471046 in words is "sixty-six million, four hundred seventy-one thousand, forty-six".