65018436 has 48 divisors (see below), whose sum is σ = 176238720. Its totient is φ = 18270720.

The previous prime is 65018423. The next prime is 65018453. The reversal of 65018436 is 63481056.

It is a junction number, because it is equal to n+sod(n) for n = 65018397 and 65018406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1221 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (3671640).

Almost surely, 2^65018436 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 65018436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88119360).

65018436 is an abundant number, since it is smaller than the sum of its proper divisors (111220284).

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

65018436 is a wasteful number, since it uses less digits than its factorization.

65018436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12764 (or 12762 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 65018436 is about 8063.4010194210. The cubic root of 65018436 is about 402.1105856502.

The spelling of 65018436 in words is "sixty-five million, eighteen thousand, four hundred thirty-six".