65660016105 has 24 divisors (see below), whose sum is σ = 113816888640. Its totient is φ = 35016769440.

The previous prime is 65660016043. The next prime is 65660016119. The reversal of 65660016105 is 50161006656.

It is not a de Polignac number, because 65660016105 - 2¹³ = 65660007913 is a prime.

It is a super-2 number, since 2×65660016105² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65660016105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1273926 + ... + 1324464.

It is an arithmetic number, because the mean of its divisors is an integer number (4742370360).

Almost surely, 2^65660016105 is an apocalyptic number.

It is an amenable number.

65660016105 is a deficient number, since it is larger than the sum of its proper divisors (48156872535).

65660016105 is a wasteful number, since it uses less digits than its factorization.

65660016105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79421 (or 79418 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 65660016105 in words is "sixty-five billion, six hundred sixty million, sixteen thousand, one hundred five".