65814012 has 48 divisors (see below), whose sum is σ = 186144000. Its totient is φ = 19943280.

The previous prime is 65813999. The next prime is 65814097. The reversal of 65814012 is 21041856.

65814012 is a `hidden beast` number, since 658 + 1 + 4 + 0 + 1 + 2 = 666.

It is a super-2 number, since 2×65814012² = 8662968351072288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 26512 + ... + 28887.

It is an arithmetic number, because the mean of its divisors is an integer number (3878000).

Almost surely, 2^65814012 is an apocalyptic number.

It is an amenable number.

65814012 is an abundant number, since it is smaller than the sum of its proper divisors (120329988).

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

65814012 is a wasteful number, since it uses less digits than its factorization.

65814012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55423 (or 55415 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 65814012 is about 8112.5835588917. The cubic root of 65814012 is about 403.7440377793.

Adding to 65814012 its reverse (21041856), we get a palindrome (86855868).

The spelling of 65814012 in words is "sixty-five million, eight hundred fourteen thousand, twelve".