86581328167 has 4 divisors (see below), whose sum is σ = 87204215560. Its totient is φ = 85958440776.

The previous prime is 86581328123. The next prime is 86581328177. The reversal of 86581328167 is 76182318568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86581328167 - 2²⁷ = 86447110439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86581328177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311443488 + ... + 311443765.

It is an arithmetic number, because the mean of its divisors is an integer number (21801053890).

Almost surely, 2^86581328167 is an apocalyptic number.

86581328167 is a deficient number, since it is larger than the sum of its proper divisors (622887393).

86581328167 is a wasteful number, since it uses less digits than its factorization.

86581328167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622887392.

The product of its digits is 3870720, while the sum is 55.

The spelling of 86581328167 in words is "eighty-six billion, five hundred eighty-one million, three hundred twenty-eight thousand, one hundred sixty-seven".