65994912 has 192 divisors, whose sum is σ = 208293120. Its totient is φ = 20528640.

The previous prime is 65994883. The next prime is 65994919. The reversal of 65994912 is 21949956.

65994912 is a `hidden beast` number, since 6 + 599 + 49 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (65994919) 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 31 ways as a sum of consecutive naturals, for example, 1609612 + ... + 1609652.

It is an arithmetic number, because the mean of its divisors is an integer number (1084860).

Almost surely, 2^65994912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65994912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104146560).

65994912 is an abundant number, since it is smaller than the sum of its proper divisors (142298208).

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

65994912 is an equidigital number, since it uses as much as digits as its factorization.

65994912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 69 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 65994912 is about 8123.7252538475. The cubic root of 65994912 is about 404.1136170331.

It can be divided in two parts, 6599 and 4912, that added together give a palindrome (11511).

The spelling of 65994912 in words is "sixty-five million, nine hundred ninety-four thousand, nine hundred twelve".