65255561047 has 6 divisors (see below), whose sum is σ = 68870827968. Its totient is φ = 61821057492.

The previous prime is 65255561023. The next prime is 65255561051. The reversal of 65255561047 is 74016555256.

It is a de Polignac number, because none of the positive numbers 2^k-65255561047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65255560988 and 65255561006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65255591047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90381303 + ... + 90382024.

It is an arithmetic number, because the mean of its divisors is an integer number (11478471328).

Almost surely, 2^65255561047 is an apocalyptic number.

65255561047 is a deficient number, since it is larger than the sum of its proper divisors (3615266921).

65255561047 is a wasteful number, since it uses less digits than its factorization.

65255561047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180763365 (or 180763346 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 65255561047 in words is "sixty-five billion, two hundred fifty-five million, five hundred sixty-one thousand, forty-seven".