65078666485 has 16 divisors (see below), whose sum is σ = 90713872512. Its totient is φ = 43893806400.

The previous prime is 65078666479. The next prime is 65078666491. The reversal of 65078666485 is 58466687056.

It is an interprime number because it is at equal distance from previous prime (65078666479) and next prime (65078666491).

It is not a de Polignac number, because 65078666485 - 2¹⁵ = 65078633717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15238771 + ... + 15243040.

It is an arithmetic number, because the mean of its divisors is an integer number (5669617032).

Almost surely, 2^65078666485 is an apocalyptic number.

It is an amenable number.

65078666485 is a deficient number, since it is larger than the sum of its proper divisors (25635206027).

65078666485 is a wasteful number, since it uses less digits than its factorization.

65078666485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30481884.

The product of its (nonzero) digits is 58060800, while the sum is 61.

The spelling of 65078666485 in words is "sixty-five billion, seventy-eight million, six hundred sixty-six thousand, four hundred eighty-five".