65746965841 has 4 divisors (see below), whose sum is σ = 65747493952. Its totient is φ = 65746437732.

The previous prime is 65746965797. The next prime is 65746965847. The reversal of 65746965841 is 14856964756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 65746965841 - 2⁹ = 65746965329 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 65746965841.

It is not an unprimeable number, because it can be changed into a prime (65746965847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37420 + ... + 364546.

It is an arithmetic number, because the mean of its divisors is an integer number (16436873488).

Almost surely, 2^65746965841 is an apocalyptic number.

It is an amenable number.

65746965841 is a deficient number, since it is larger than the sum of its proper divisors (528111).

65746965841 is a wasteful number, since it uses less digits than its factorization.

65746965841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528110.

The product of its digits is 43545600, while the sum is 61.

The spelling of 65746965841 in words is "sixty-five billion, seven hundred forty-six million, nine hundred sixty-five thousand, eight hundred forty-one".