665316265002757 has 16 divisors (see below), whose sum is σ = 688164604807680. Its totient is φ = 642783293020800.

The previous prime is 665316265002743. The next prime is 665316265002871. The reversal of 665316265002757 is 757200562613566.

It is a cyclic number.

It is not a de Polignac number, because 665316265002757 - 2¹⁹ = 665316264478469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 665316265002695 and 665316265002704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665316265002707) 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, 889289719 + ... + 890037547.

It is an arithmetic number, because the mean of its divisors is an integer number (43010287800480).

Almost surely, 2^{665316265002757} is an apocalyptic number.

It is an amenable number.

665316265002757 is a deficient number, since it is larger than the sum of its proper divisors (22848339804923).

665316265002757 is a wasteful number, since it uses less digits than its factorization.

665316265002757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958644.

The product of its (nonzero) digits is 95256000, while the sum is 61.

The spelling of 665316265002757 in words is "six hundred sixty-five trillion, three hundred sixteen billion, two hundred sixty-five million, two thousand, seven hundred fifty-seven".