662665516056 has 96 divisors (see below), whose sum is σ = 1890727488000. Its totient is φ = 209091160512.

The previous prime is 662665516049. The next prime is 662665516067. The reversal of 662665516056 is 650615566266.

662665516056 is a `hidden beast` number, since 6 + 6 + 26 + 6 + 5 + 5 + 1 + 605 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 662665515993 and 662665516011.

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 23 ways as a sum of consecutive naturals, for example, 1475025 + ... + 1871103.

It is an arithmetic number, because the mean of its divisors is an integer number (19695078000).

Almost surely, 2^662665516056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662665516056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (945363744000).

662665516056 is an abundant number, since it is smaller than the sum of its proper divisors (1228061971944).

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

662665516056 is a wasteful number, since it uses less digits than its factorization.

662665516056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397333 (or 397326 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 54.

The spelling of 662665516056 in words is "six hundred sixty-two billion, six hundred sixty-five million, five hundred sixteen thousand, fifty-six".