665602427011063 has 4 divisors (see below), whose sum is σ = 666698971372480. Its totient is φ = 664505882649648.

The previous prime is 665602427011057. The next prime is 665602427011099. The reversal of 665602427011063 is 360110724206566.

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 665602427011063 - 2¹³ = 665602427002871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 665602427010998 and 665602427011016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665602427011033) 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, 548272179798 + ... + 548272181011.

It is an arithmetic number, because the mean of its divisors is an integer number (166674742843120).

Almost surely, 2^{665602427011063} is an apocalyptic number.

665602427011063 is a deficient number, since it is larger than the sum of its proper divisors (1096544361417).

665602427011063 is a wasteful number, since it uses less digits than its factorization.

665602427011063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096544361416.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 665602427011063 in words is "six hundred sixty-five trillion, six hundred two billion, four hundred twenty-seven million, eleven thousand, sixty-three".