85465011591 has 12 divisors (see below), whose sum is σ = 130711194432. Its totient is φ = 53625105216.

The previous prime is 85465011589. The next prime is 85465011607. The reversal of 85465011591 is 19511056458.

85465011591 is a `hidden beast` number, since 8 + 5 + 4 + 6 + 50 + 1 + 1 + 591 = 666.

It is not a de Polignac number, because 85465011591 - 2¹ = 85465011589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85465011091) 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 11 ways as a sum of consecutive naturals, for example, 279297271 + ... + 279297576.

It is an arithmetic number, because the mean of its divisors is an integer number (10892599536).

Almost surely, 2^85465011591 is an apocalyptic number.

85465011591 is a deficient number, since it is larger than the sum of its proper divisors (45246182841).

85465011591 is a wasteful number, since it uses less digits than its factorization.

85465011591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558594870 (or 558594867 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 85465011591 in words is "eighty-five billion, four hundred sixty-five million, eleven thousand, five hundred ninety-one".