665040060353 has 16 divisors (see below), whose sum is σ = 674456568192. Its totient is φ = 655681200000.

The previous prime is 665040060281. The next prime is 665040060361. The reversal of 665040060353 is 353060040566.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 665040060353 - 2¹⁸ = 665039798209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665040060383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103087778 + ... + 103094228.

It is an arithmetic number, because the mean of its divisors is an integer number (42153535512).

Almost surely, 2^665040060353 is an apocalyptic number.

It is an amenable number.

665040060353 is a deficient number, since it is larger than the sum of its proper divisors (9416507839).

665040060353 is a wasteful number, since it uses less digits than its factorization.

665040060353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10696.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 665040060353 in words is "six hundred sixty-five billion, forty million, sixty thousand, three hundred fifty-three".