66416332 has 24 divisors (see below), whose sum is σ = 119757456. Its totient is φ = 32205888.

The previous prime is 66416309. The next prime is 66416333. The reversal of 66416332 is 23361466.

It is a super-2 number, since 2×66416332² = 8822258312668448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66416294 and 66416303.

It is not an unprimeable number, because it can be changed into a prime (66416333) 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 7 ways as a sum of consecutive naturals, for example, 65058 + ... + 66070.

It is an arithmetic number, because the mean of its divisors is an integer number (4989894).

Almost surely, 2^66416332 is an apocalyptic number.

It is an amenable number.

66416332 is a deficient number, since it is larger than the sum of its proper divisors (53341124).

66416332 is a wasteful number, since it uses less digits than its factorization.

66416332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497 (or 1495 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 66416332 is about 8149.6215863069. The cubic root of 66416332 is about 404.9719677798.

Adding to 66416332 its reverse (23361466), we get a palindrome (89777798).

The spelling of 66416332 in words is "sixty-six million, four hundred sixteen thousand, three hundred thirty-two".