65555050669 has 4 divisors (see below), whose sum is σ = 65768585344. Its totient is φ = 65341515996.

The previous prime is 65555050663. The next prime is 65555050721. The reversal of 65555050669 is 96605055556.

65555050669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 65555050669 - 2¹⁹ = 65554526381 is a prime.

It is a super-2 number, since 2×65555050669² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65555050663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106766877 + ... + 106767490.

It is an arithmetic number, because the mean of its divisors is an integer number (16442146336).

Almost surely, 2^65555050669 is an apocalyptic number.

It is an amenable number.

65555050669 is a deficient number, since it is larger than the sum of its proper divisors (213534675).

65555050669 is a wasteful number, since it uses less digits than its factorization.

65555050669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213534674.

The product of its (nonzero) digits is 6075000, while the sum is 52.

The spelling of 65555050669 in words is "sixty-five billion, five hundred fifty-five million, fifty thousand, six hundred sixty-nine".