65810945443495 has 48 divisors (see below), whose sum is σ = 95979411933120. Its totient is φ = 43112080467456.

The previous prime is 65810945443457. The next prime is 65810945443501. The reversal of 65810945443495 is 59434454901856.

It is a de Polignac number, because none of the positive numbers 2^k-65810945443495 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65810945443495.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2659432 + ... + 11776861.

It is an arithmetic number, because the mean of its divisors is an integer number (1999571081940).

Almost surely, 2^{65810945443495} is an apocalyptic number.

65810945443495 is a deficient number, since it is larger than the sum of its proper divisors (30168466489625).

65810945443495 is a wasteful number, since it uses less digits than its factorization.

65810945443495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437144 (or 14437137 counting only the distinct ones).

The product of its (nonzero) digits is 373248000, while the sum is 67.

The spelling of 65810945443495 in words is "sixty-five trillion, eight hundred ten billion, nine hundred forty-five million, four hundred forty-three thousand, four hundred ninety-five".