65013612 has 12 divisors (see below), whose sum is σ = 151698456. Its totient is φ = 21671200.

The previous prime is 65013589. The next prime is 65013623. The reversal of 65013612 is 21631056.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2708889 + ... + 2708912.

It is an arithmetic number, because the mean of its divisors is an integer number (12641538).

Almost surely, 2^65013612 is an apocalyptic number.

It is an amenable number.

65013612 is an abundant number, since it is smaller than the sum of its proper divisors (86684844).

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

65013612 is a wasteful number, since it uses less digits than its factorization.

65013612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5417808 (or 5417806 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 65013612 is about 8063.1018845107. The cubic root of 65013612 is about 402.1006406276.

Adding to 65013612 its reverse (21631056), we get a palindrome (86644668).

The spelling of 65013612 in words is "sixty-five million, thirteen thousand, six hundred twelve".