665111730746360 has 64 divisors (see below), whose sum is σ = 1531312561658880. Its totient is φ = 259856111491200.

The previous prime is 665111730746173. The next prime is 665111730746363. The reversal of 665111730746360 is 63647037111566.

It is a super-2 number, since 2×665111730746360² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 665111730746296 and 665111730746305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665111730746363) 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, 325891085 + ... + 327925635.

It is an arithmetic number, because the mean of its divisors is an integer number (23926758775920).

Almost surely, 2^{665111730746360} is an apocalyptic number.

It is an amenable number.

665111730746360 is an abundant number, since it is smaller than the sum of its proper divisors (866200830912520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665111730746360 is a wasteful number, since it uses less digits than its factorization.

665111730746360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224668 (or 2224664 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 665111730746360 in words is "six hundred sixty-five trillion, one hundred eleven billion, seven hundred thirty million, seven hundred forty-six thousand, three hundred sixty".