66472430 has 8 divisors (see below), whose sum is σ = 119650392. Its totient is φ = 26588968.

The previous prime is 66472421. The next prime is 66472457. The reversal of 66472430 is 3427466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 3323612 + ... + 3323631.

It is an arithmetic number, because the mean of its divisors is an integer number (14956299).

Almost surely, 2^66472430 is an apocalyptic number.

66472430 is a deficient number, since it is larger than the sum of its proper divisors (53177962).

66472430 is a wasteful number, since it uses less digits than its factorization.

66472430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647250.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 66472430 is about 8153.0626147479. The cubic root of 66472430 is about 405.0859544231.

Adding to 66472430 its reverse (3427466), we get a palindrome (69899896).

The spelling of 66472430 in words is "sixty-six million, four hundred seventy-two thousand, four hundred thirty".