662078815313 has 4 divisors (see below), whose sum is σ = 663151877220. Its totient is φ = 661005753408.

The previous prime is 662078815283. The next prime is 662078815367. The reversal of 662078815313 is 313518870266.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219578462464 + 442500352849 = 468592^2 + 665207^2 .

It is a cyclic number.

It is not a de Polignac number, because 662078815313 - 2²⁰ = 662077766737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662078805313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536530028 + ... + 536531261.

It is an arithmetic number, because the mean of its divisors is an integer number (165787969305).

Almost surely, 2^662078815313 is an apocalyptic number.

It is an amenable number.

662078815313 is a deficient number, since it is larger than the sum of its proper divisors (1073061907).

662078815313 is a wasteful number, since it uses less digits than its factorization.

662078815313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073061906.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 662078815313 in words is "six hundred sixty-two billion, seventy-eight million, eight hundred fifteen thousand, three hundred thirteen".