66607328 has 12 divisors (see below), whose sum is σ = 131133240. Its totient is φ = 33303648.

The previous prime is 66607267. The next prime is 66607337. The reversal of 66607328 is 82370666.

66607328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66607328² = 8873072286599168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66607291 and 66607300.

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, 1040708 + ... + 1040771.

It is an arithmetic number, because the mean of its divisors is an integer number (10927770).

Almost surely, 2^66607328 is an apocalyptic number.

It is an amenable number.

66607328 is a deficient number, since it is larger than the sum of its proper divisors (64525912).

66607328 is a wasteful number, since it uses less digits than its factorization.

66607328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081489 (or 2081481 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 66607328 is about 8161.3312639544. The cubic root of 66607328 is about 405.3597940751.

The spelling of 66607328 in words is "sixty-six million, six hundred seven thousand, three hundred twenty-eight".