662116678720 has 84 divisors (see below), whose sum is σ = 1834080134220. Its totient is φ = 227011427328.

The previous prime is 662116678679. The next prime is 662116678739. The reversal of 662116678720 is 27876611266.

It can be written as a sum of positive squares in 2 ways, for example, as 333732668416 + 328384010304 = 577696^2 + 573048^2 .

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 11 ways as a sum of consecutive naturals, for example, 21097735 + ... + 21129094.

Almost surely, 2^662116678720 is an apocalyptic number.

It is an amenable number.

662116678720 is an abundant number, since it is smaller than the sum of its proper divisors (1171963455500).

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

662116678720 is a wasteful number, since it uses less digits than its factorization.

662116678720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42226860 (or 42226843 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 662116678720 in words is "six hundred sixty-two billion, one hundred sixteen million, six hundred seventy-eight thousand, seven hundred twenty".