65556285057 has 12 divisors (see below), whose sum is σ = 94694855424. Its totient is φ = 43703062200.

The previous prime is 65556285043. The next prime is 65556285073. The reversal of 65556285057 is 75058265556.

65556285057 is a `hidden beast` number, since 6 + 5 + 5 + 5 + 628 + 5 + 0 + 5 + 7 = 666.

It is not a de Polignac number, because 65556285057 - 2²⁷ = 65422067329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65556284994 and 65556285012.

It is not an unprimeable number, because it can be changed into a prime (65556285077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424932 + ... + 558282.

It is an arithmetic number, because the mean of its divisors is an integer number (7891237952).

Almost surely, 2^65556285057 is an apocalyptic number.

It is an amenable number.

65556285057 is a deficient number, since it is larger than the sum of its proper divisors (29138570367).

65556285057 is a wasteful number, since it uses less digits than its factorization.

65556285057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187980 (or 187977 counting only the distinct ones).

The product of its (nonzero) digits is 12600000, while the sum is 54.

The spelling of 65556285057 in words is "sixty-five billion, five hundred fifty-six million, two hundred eighty-five thousand, fifty-seven".