663160256471517 has 12 divisors (see below), whose sum is σ = 1028575091670336. Its totient is φ = 378948717983640.

The previous prime is 663160256471491. The next prime is 663160256471533. The reversal of 663160256471517 is 715174652061366.

It is not a de Polignac number, because 663160256471517 - 2⁸ = 663160256471261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663160256471917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2255647130709 + ... + 2255647131002.

It is an arithmetic number, because the mean of its divisors is an integer number (85714590972528).

Almost surely, 2^{663160256471517} is an apocalyptic number.

It is an amenable number.

663160256471517 is a deficient number, since it is larger than the sum of its proper divisors (365414835198819).

663160256471517 is a wasteful number, since it uses less digits than its factorization.

663160256471517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511294261728 (or 4511294261721 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 60.

The spelling of 663160256471517 in words is "six hundred sixty-three trillion, one hundred sixty billion, two hundred fifty-six million, four hundred seventy-one thousand, five hundred seventeen".