65013645 has 16 divisors (see below), whose sum is σ = 104195520. Its totient is φ = 34616064.

The previous prime is 65013631. The next prime is 65013647. The reversal of 65013645 is 54631056.

It is not a de Polignac number, because 65013645 - 2⁹ = 65013133 is a prime.

It is a super-3 number, since 3×65013645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65013647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6597 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (6512220).

Almost surely, 2^65013645 is an apocalyptic number.

It is an amenable number.

65013645 is a deficient number, since it is larger than the sum of its proper divisors (39181875).

65013645 is a wasteful number, since it uses less digits than its factorization.

65013645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7244.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 65013645 is about 8063.1039308693. The cubic root of 65013645 is about 402.1007086612.

The spelling of 65013645 in words is "sixty-five million, thirteen thousand, six hundred forty-five".