3660215328 has 864 divisors, whose sum is σ = 14923621440. Its totient is φ = 836075520.

The previous prime is 3660215303. The next prime is 3660215329. The reversal of 3660215328 is 8235120663.

It is a happy number.

3660215328 is a `hidden beast` number, since 3 + 6 + 602 + 15 + 32 + 8 = 666.

It is a super-2 number, since 2×3660215328² = 26794352494652295168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3660215292 and 3660215301.

It is not an unprimeable number, because it can be changed into a prime (3660215329) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 50139900 + ... + 50139972.

It is an arithmetic number, because the mean of its divisors is an integer number (17272710).

Almost surely, 2^3660215328 is an apocalyptic number.

3660215328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3660215328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7461810720).

3660215328 is an abundant number, since it is smaller than the sum of its proper divisors (11263406112).

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

3660215328 is a wasteful number, since it uses less digits than its factorization.

3660215328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3660215328 is about 60499.7134538669. The cubic root of 3660215328 is about 1541.1167657140.

The spelling of 3660215328 in words is "three billion, six hundred sixty million, two hundred fifteen thousand, three hundred twenty-eight".