65116500 has 48 divisors (see below), whose sum is σ = 189623616. Its totient is φ = 17364000.

The previous prime is 65116483. The next prime is 65116517. The reversal of 65116500 is 561156.

65116500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (65116483) and next prime (65116517).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20206 + ... + 23205.

It is an arithmetic number, because the mean of its divisors is an integer number (3950492).

Almost surely, 2^65116500 is an apocalyptic number.

65116500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65116500 is an abundant number, since it is smaller than the sum of its proper divisors (124507116).

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

65116500 is a wasteful number, since it uses less digits than its factorization.

65116500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43433 (or 43421 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 65116500 is about 8069.4795371201. The cubic root of 65116500 is about 402.3126450802.

Adding to 65116500 its reverse (561156), we get a palindrome (65677656).

The spelling of 65116500 in words is "sixty-five million, one hundred sixteen thousand, five hundred".