85644661146 has 32 divisors (see below), whose sum is σ = 187017882048. Its totient is φ = 25931149440.

The previous prime is 85644661129. The next prime is 85644661169. The reversal of 85644661146 is 64116644658.

It is a Curzon number.

It is an unprimeable number.

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, 465121 + ... + 622596.

It is an arithmetic number, because the mean of its divisors is an integer number (5844308814).

Almost surely, 2^85644661146 is an apocalyptic number.

85644661146 is an abundant number, since it is smaller than the sum of its proper divisors (101373220902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85644661146 is a wasteful number, since it uses less digits than its factorization.

85644661146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088926.

The product of its digits is 3317760, while the sum is 51.

The spelling of 85644661146 in words is "eighty-five billion, six hundred forty-four million, six hundred sixty-one thousand, one hundred forty-six".