85866547003611 has 16 divisors (see below), whose sum is σ = 125048553634560. Its totient is φ = 51977099020320.

The previous prime is 85866547003603. The next prime is 85866547003631. The reversal of 85866547003611 is 11630074566858.

It is a happy number.

It is not a de Polignac number, because 85866547003611 - 2³ = 85866547003603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85866547003631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1580784856 + ... + 1580839173.

It is an arithmetic number, because the mean of its divisors is an integer number (7815534602160).

Almost surely, 2^{85866547003611} is an apocalyptic number.

85866547003611 is a deficient number, since it is larger than the sum of its proper divisors (39182006630949).

85866547003611 is a wasteful number, since it uses less digits than its factorization.

85866547003611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161624866.

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 85866547003611 in words is "eighty-five trillion, eight hundred sixty-six billion, five hundred forty-seven million, three thousand, six hundred eleven".