663544500479 has 8 divisors (see below), whose sum is σ = 775972306560. Its totient is φ = 555525628056.

The previous prime is 663544500467. The next prime is 663544500491. The reversal of 663544500479 is 974005445366.

It is an interprime number because it is at equal distance from previous prime (663544500467) and next prime (663544500491).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 663544500479 - 2²⁴ = 663527723263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 663544500479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663544500499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102233089 + ... + 1102233690.

It is an arithmetic number, because the mean of its divisors is an integer number (96996538320).

Almost surely, 2^663544500479 is an apocalyptic number.

663544500479 is a deficient number, since it is larger than the sum of its proper divisors (112427806081).

663544500479 is a wasteful number, since it uses less digits than its factorization.

663544500479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204466829.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 663544500479 in words is "six hundred sixty-three billion, five hundred forty-four million, five hundred thousand, four hundred seventy-nine".