665147114768 has 20 divisors (see below), whose sum is σ = 1290866850588. Its totient is φ = 332020185600.

The previous prime is 665147114747. The next prime is 665147114809. The reversal of 665147114768 is 867411741566.

665147114768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 595138188304 + 70008926464 = 771452^2 + 264592^2 .

It is a super-3 number, since 3×665147114768³ (a number of 36 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34575821 + ... + 34595052.

Almost surely, 2^665147114768 is an apocalyptic number.

It is an amenable number.

665147114768 is a deficient number, since it is larger than the sum of its proper divisors (625719735820).

665147114768 is a wasteful number, since it uses less digits than its factorization.

665147114768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69171482 (or 69171476 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 56.

The spelling of 665147114768 in words is "six hundred sixty-five billion, one hundred forty-seven million, one hundred fourteen thousand, seven hundred sixty-eight".