65105612 has 48 divisors (see below), whose sum is σ = 137018112. Its totient is φ = 26671680.

The previous prime is 65105603. The next prime is 65105627. The reversal of 65105612 is 21650156.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23273 + ... + 25919.

It is an arithmetic number, because the mean of its divisors is an integer number (2854544).

Almost surely, 2^65105612 is an apocalyptic number.

It is an amenable number.

65105612 is an abundant number, since it is smaller than the sum of its proper divisors (71912500).

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

65105612 is a wasteful number, since it uses less digits than its factorization.

65105612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 65105612 is about 8068.8048681326. The cubic root of 65105612 is about 402.2902205322.

Adding to 65105612 its reverse (21650156), we get a palindrome (86755768).

The spelling of 65105612 in words is "sixty-five million, one hundred five thousand, six hundred twelve".