660753817479 has 12 divisors (see below), whose sum is σ = 1090768206736. Its totient is φ = 377573609952.

The previous prime is 660753817429. The next prime is 660753817487. The reversal of 660753817479 is 974718357066.

660753817479 is a `hidden beast` number, since 6 + 60 + 75 + 38 + 1 + 7 + 479 = 666.

It is not a de Polignac number, because 660753817479 - 2¹⁵ = 660753784711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 10488155833 = 660753817479 / (6 + 6 + 0 + 7 + 5 + 3 + 8 + 1 + 7 + 4 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660753817429) 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, 5244077854 + ... + 5244077979.

Almost surely, 2^660753817479 is an apocalyptic number.

660753817479 is a deficient number, since it is larger than the sum of its proper divisors (430014389257).

660753817479 is a wasteful number, since it uses less digits than its factorization.

660753817479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488155846 (or 10488155843 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 660753817479 in words is "six hundred sixty billion, seven hundred fifty-three million, eight hundred seventeen thousand, four hundred seventy-nine".