662116644247 has 4 divisors (see below), whose sum is σ = 668304650376. Its totient is φ = 655928638120.

The previous prime is 662116644221. The next prime is 662116644251. The reversal of 662116644247 is 742446611266.

662116644247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 662116644247 - 2¹¹ = 662116642199 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 662116644247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662116644257) 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, 3094002904 + ... + 3094003117.

It is an arithmetic number, because the mean of its divisors is an integer number (167076162594).

Almost surely, 2^662116644247 is an apocalyptic number.

662116644247 is a deficient number, since it is larger than the sum of its proper divisors (6188006129).

662116644247 is a wasteful number, since it uses less digits than its factorization.

662116644247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6188006128.

The product of its digits is 2322432, while the sum is 49.

The spelling of 662116644247 in words is "six hundred sixty-two billion, one hundred sixteen million, six hundred forty-four thousand, two hundred forty-seven".