65555050617 has 48 divisors (see below), whose sum is σ = 110604848640. Its totient is φ = 36634985856.

The previous prime is 65555050553. The next prime is 65555050619. The reversal of 65555050617 is 71605055556.

65555050617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65555050617 - 2⁶ = 65555050553 is a prime.

It is a super-2 number, since 2×65555050617² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65555050619) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4223523 + ... + 4239015.

It is an arithmetic number, because the mean of its divisors is an integer number (2304267680).

Almost surely, 2^65555050617 is an apocalyptic number.

It is an amenable number.

65555050617 is a deficient number, since it is larger than the sum of its proper divisors (45049798023).

65555050617 is a wasteful number, since it uses less digits than its factorization.

65555050617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16982 (or 16979 counting only the distinct ones).

The product of its (nonzero) digits is 787500, while the sum is 45.

The spelling of 65555050617 in words is "sixty-five billion, five hundred fifty-five million, fifty thousand, six hundred seventeen".