65140611 has 8 divisors (see below), whose sum is σ = 87295824. Its totient is φ = 43206240.

The previous prime is 65140597. The next prime is 65140627. The reversal of 65140611 is 11604156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65140611 - 2⁹ = 65140099 is a prime.

It is a super-3 number, since 3×65140611³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (65140631) 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, 54520 + ... + 55701.

It is an arithmetic number, because the mean of its divisors is an integer number (10911978).

Almost surely, 2^65140611 is an apocalyptic number.

65140611 is a deficient number, since it is larger than the sum of its proper divisors (22155213).

65140611 is a wasteful number, since it uses less digits than its factorization.

65140611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110421.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 65140611 is about 8070.9733613735. The cubic root of 65140611 is about 402.3622943662.

Adding to 65140611 its reverse (11604156), we get a palindrome (76744767).

The spelling of 65140611 in words is "sixty-five million, one hundred forty thousand, six hundred eleven".