65011140 has 48 divisors (see below), whose sum is σ = 202258560. Its totient is φ = 17336160.

The previous prime is 65011139. The next prime is 65011147. The reversal of 65011140 is 4111056.

65011140 is a `hidden beast` number, since 650 + 1 + 1 + 14 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (65011147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59656 + ... + 60735.

It is an arithmetic number, because the mean of its divisors is an integer number (4213720).

Almost surely, 2^65011140 is an apocalyptic number.

65011140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65011140 is an abundant number, since it is smaller than the sum of its proper divisors (137247420).

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

65011140 is a wasteful number, since it uses less digits than its factorization.

65011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120409 (or 120401 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 65011140 is about 8062.9485921715. The cubic root of 65011140 is about 402.0955442314.

Adding to 65011140 its reverse (4111056), we get a palindrome (69122196).

The spelling of 65011140 in words is "sixty-five million, eleven thousand, one hundred forty".