66108328 has 32 divisors (see below), whose sum is σ = 145625760. Its totient is φ = 27737280.

The previous prime is 66108319. The next prime is 66108349. The reversal of 66108328 is 82380166.

It is a super-2 number, since 2×66108328² = 8740622061911168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66108293 and 66108302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27750 + ... + 30037.

It is an arithmetic number, because the mean of its divisors is an integer number (4550805).

Almost surely, 2^66108328 is an apocalyptic number.

It is an amenable number.

66108328 is an abundant number, since it is smaller than the sum of its proper divisors (79517432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66108328 is a wasteful number, since it uses less digits than its factorization.

66108328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57817 (or 57813 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 66108328 is about 8130.7027986515. The cubic root of 66108328 is about 404.3449819375.

The spelling of 66108328 in words is "sixty-six million, one hundred eight thousand, three hundred twenty-eight".