65416661456 has 40 divisors (see below), whose sum is σ = 132275730240. Its totient is φ = 31281426176.

The previous prime is 65416661447. The next prime is 65416661483.

65416661456 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3943676 + ... + 3960228.

It is an arithmetic number, because the mean of its divisors is an integer number (3306893256).

Almost surely, 2^65416661456 is an apocalyptic number.

It is an amenable number.

65416661456 is an abundant number, since it is smaller than the sum of its proper divisors (66859068784).

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

65416661456 is a wasteful number, since it uses less digits than its factorization.

65416661456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27323 (or 27317 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 50.

The spelling of 65416661456 in words is "sixty-five billion, four hundred sixteen million, six hundred sixty-one thousand, four hundred fifty-six".