65511050655 has 32 divisors (see below), whose sum is σ = 111002759424. Its totient is φ = 32878250496.

The previous prime is 65511050609. The next prime is 65511050659. The reversal of 65511050655 is 55605011556.

It is not a de Polignac number, because 65511050655 - 2²⁰ = 65510002079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65511050659) 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 31 ways as a sum of consecutive naturals, for example, 1705572 + ... + 1743558.

It is an arithmetic number, because the mean of its divisors is an integer number (3468836232).

Almost surely, 2^65511050655 is an apocalyptic number.

65511050655 is a deficient number, since it is larger than the sum of its proper divisors (45491708769).

65511050655 is a wasteful number, since it uses less digits than its factorization.

65511050655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44775.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 65511050655 in words is "sixty-five billion, five hundred eleven million, fifty thousand, six hundred fifty-five".