66471430 has 16 divisors (see below), whose sum is σ = 120994560. Its totient is φ = 26289472.

The previous prime is 66471389. The next prime is 66471467. The reversal of 66471430 is 3417466.

66471430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66471392 and 66471401.

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 in 7 ways as a sum of consecutive naturals, for example, 36454 + ... + 38233.

It is an arithmetic number, because the mean of its divisors is an integer number (7562160).

Almost surely, 2^66471430 is an apocalyptic number.

66471430 is a deficient number, since it is larger than the sum of its proper divisors (54523130).

66471430 is a wasteful number, since it uses less digits than its factorization.

66471430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74783.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66471430 is about 8153.0012878694. The cubic root of 66471430 is about 405.0839230647.

Adding to 66471430 its reverse (3417466), we get a palindrome (69888896).

The spelling of 66471430 in words is "sixty-six million, four hundred seventy-one thousand, four hundred thirty".