68565330 has 48 divisors (see below), whose sum is σ = 179501400. Its totient is φ = 18157824.

The previous prime is 68565313. The next prime is 68565337. The reversal of 68565330 is 3356586.

68565330 is a `hidden beast` number, since 68 + 565 + 3 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18481401 + 50083929 = 4299^2 + 7077^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68565337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10854 + ... + 15966.

Almost surely, 2^68565330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68565330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89750700).

68565330 is an abundant number, since it is smaller than the sum of its proper divisors (110936070).

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

68565330 is a wasteful number, since it uses less digits than its factorization.

68565330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 68565330 is about 8280.4184676863. The cubic root of 68565330 is about 409.2935086709.

The spelling of 68565330 in words is "sixty-eight million, five hundred sixty-five thousand, three hundred thirty".