665342122276 has 24 divisors (see below), whose sum is σ = 1253936630520. Its totient is φ = 307075437312.

The previous prime is 665342122253. The next prime is 665342122321. The reversal of 665342122276 is 672221243566.

665342122276 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 4 ways, for example, as 8259876 + 665333862400 = 2874^2 + 815680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4730130 + ... + 4868758.

It is an arithmetic number, because the mean of its divisors is an integer number (52247359605).

Almost surely, 2^665342122276 is an apocalyptic number.

It is an amenable number.

665342122276 is a deficient number, since it is larger than the sum of its proper divisors (588594508244).

665342122276 is a wasteful number, since it uses less digits than its factorization.

665342122276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230943 (or 230941 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 665342122276 in words is "six hundred sixty-five billion, three hundred forty-two million, one hundred twenty-two thousand, two hundred seventy-six".