665016030 has 192 divisors, whose sum is σ = 2160857088. Its totient is φ = 138378240.

The previous prime is 665016029. The next prime is 665016041. The reversal of 665016030 is 30610566.

665016030 is a `hidden beast` number, since 6 + 6 + 50 + 1 + 603 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 665015985 and 665016003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 331009 + ... + 333011.

It is an arithmetic number, because the mean of its divisors is an integer number (11254464).

Almost surely, 2^665016030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 665016030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080428544).

665016030 is an abundant number, since it is smaller than the sum of its proper divisors (1495841058).

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

665016030 is a wasteful number, since it uses less digits than its factorization.

665016030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 665016030 is about 25787.9047229510. The cubic root of 665016030 is about 872.8588869036.

Adding to 665016030 its reverse (30610566), we get a palindrome (695626596).

The spelling of 665016030 in words is "six hundred sixty-five million, sixteen thousand, thirty".