65518012 has 12 divisors (see below), whose sum is σ = 131036080. Its totient is φ = 28079136.

The previous prime is 65518003. The next prime is 65518043. The reversal of 65518012 is 21081556.

65518012 is an admirable number.

It is a super-3 number, since 3×65518012³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 2339929 = 65518012 / (6 + 5 + 5 + 1 + 8 + 0 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1169937 + ... + 1169992.

Almost surely, 2^65518012 is an apocalyptic number.

It is an amenable number.

65518012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65518012 is a wasteful number, since it uses less digits than its factorization.

65518012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339940 (or 2339938 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 65518012 is about 8094.3197367043. The cubic root of 65518012 is about 403.1378454493.

Adding to 65518012 its reverse (21081556), we get a palindrome (86599568).

The spelling of 65518012 in words is "sixty-five million, five hundred eighteen thousand, twelve".