85641022716 has 24 divisors (see below), whose sum is σ = 206275152384. Its totient is φ = 27626136240.

The previous prime is 85641022711. The next prime is 85641022777. The reversal of 85641022716 is 61722014658.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85641022711) 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, 115108530 + ... + 115109273.

It is an arithmetic number, because the mean of its divisors is an integer number (8594798016).

Almost surely, 2^85641022716 is an apocalyptic number.

It is an amenable number.

85641022716 is an abundant number, since it is smaller than the sum of its proper divisors (120634129668).

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

85641022716 is a wasteful number, since it uses less digits than its factorization.

85641022716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230217841 (or 230217839 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 85641022716 in words is "eighty-five billion, six hundred forty-one million, twenty-two thousand, seven hundred sixteen".