65655051611 has 4 divisors (see below), whose sum is σ = 65670580800. Its totient is φ = 65639522424.

The previous prime is 65655051571. The next prime is 65655051647. The reversal of 65655051611 is 11615055656.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65655051611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65655051811) 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, 7758251 + ... + 7766708.

It is an arithmetic number, because the mean of its divisors is an integer number (16417645200).

Almost surely, 2^65655051611 is an apocalyptic number.

65655051611 is a deficient number, since it is larger than the sum of its proper divisors (15529189).

65655051611 is a wasteful number, since it uses less digits than its factorization.

65655051611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15529188.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 65655051611 in words is "sixty-five billion, six hundred fifty-five million, fifty-one thousand, six hundred eleven".