65555844473 has 8 divisors (see below), whose sum is σ = 76449964800. Its totient is φ = 56190723540.

The previous prime is 65555844443. The next prime is 65555844479. The reversal of 65555844473 is 37444855556.

It is not a de Polignac number, because 65555844473 - 2⁸ = 65555844217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65555844479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95562113 + ... + 95562798.

It is an arithmetic number, because the mean of its divisors is an integer number (9556245600).

Almost surely, 2^65555844473 is an apocalyptic number.

It is an amenable number.

65555844473 is a deficient number, since it is larger than the sum of its proper divisors (10894120327).

65555844473 is an equidigital number, since it uses as much as digits as its factorization.

65555844473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191124932 (or 191124918 counting only the distinct ones).

The product of its digits is 40320000, while the sum is 56.

The spelling of 65555844473 in words is "sixty-five billion, five hundred fifty-five million, eight hundred forty-four thousand, four hundred seventy-three".