65105012 has 24 divisors (see below), whose sum is σ = 132048000. Its totient is φ = 27508320.

The previous prime is 65104997. The next prime is 65105023. The reversal of 65105012 is 21050156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14387 + ... + 18362.

It is an arithmetic number, because the mean of its divisors is an integer number (5502000).

Almost surely, 2^65105012 is an apocalyptic number.

It is an amenable number.

65105012 is an abundant number, since it is smaller than the sum of its proper divisors (66942988).

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

65105012 is a wasteful number, since it uses less digits than its factorization.

65105012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32831 (or 32829 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 65105012 is about 8068.7676878195. The cubic root of 65105012 is about 402.2889847202.

Adding to 65105012 its reverse (21050156), we get a palindrome (86155168).

The spelling of 65105012 in words is "sixty-five million, one hundred five thousand, twelve".