65822666812 has 48 divisors (see below), whose sum is σ = 132294310848. Its totient is φ = 28070922240.

The previous prime is 65822666801. The next prime is 65822666827. The reversal of 65822666812 is 21866622856.

It is a happy number.

65822666812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65822666812.

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, 6362508 + ... + 6372844.

It is an arithmetic number, because the mean of its divisors is an integer number (2756131476).

Almost surely, 2^65822666812 is an apocalyptic number.

It is an amenable number.

65822666812 is an abundant number, since it is smaller than the sum of its proper divisors (66471644036).

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

65822666812 is a wasteful number, since it uses less digits than its factorization.

65822666812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446 (or 11444 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The spelling of 65822666812 in words is "sixty-five billion, eight hundred twenty-two million, six hundred sixty-six thousand, eight hundred twelve".