65018830 has 16 divisors (see below), whose sum is σ = 117890640. Its totient is φ = 25817152.

The previous prime is 65018803. The next prime is 65018831. The reversal of 65018830 is 3881056.

It is a junction number, because it is equal to n+sod(n) for n = 65018792 and 65018801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65018831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22360 + ... + 25099.

It is an arithmetic number, because the mean of its divisors is an integer number (7368165).

Almost surely, 2^65018830 is an apocalyptic number.

65018830 is a deficient number, since it is larger than the sum of its proper divisors (52871810).

65018830 is a wasteful number, since it uses less digits than its factorization.

65018830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47603.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 65018830 is about 8063.4254507622. The cubic root of 65018830 is about 402.1113978878. Note that the first 3 decimals are identical.

Adding to 65018830 its reverse (3881056), we get a palindrome (68899886).

The spelling of 65018830 in words is "sixty-five million, eighteen thousand, eight hundred thirty".