86220164699 has 4 divisors (see below), whose sum is σ = 89968867536. Its totient is φ = 82471461864.

The previous prime is 86220164689. The next prime is 86220164713. The reversal of 86220164699 is 99646102268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86220164699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86220164699.

It is not an unprimeable number, because it can be changed into a prime (86220164629) 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 3 ways as a sum of consecutive naturals, for example, 1874351384 + ... + 1874351429.

It is an arithmetic number, because the mean of its divisors is an integer number (22492216884).

Almost surely, 2^86220164699 is an apocalyptic number.

86220164699 is a deficient number, since it is larger than the sum of its proper divisors (3748702837).

86220164699 is a wasteful number, since it uses less digits than its factorization.

86220164699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748702836.

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 86220164699 in words is "eighty-six billion, two hundred twenty million, one hundred sixty-four thousand, six hundred ninety-nine".