86081036620565 has 32 divisors (see below), whose sum is σ = 125045570548224. Its totient is φ = 55533831413760.

The previous prime is 86081036620549. The next prime is 86081036620589. The reversal of 86081036620565 is 56502663018068.

It is not a de Polignac number, because 86081036620565 - 2⁴ = 86081036620549 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 86081036620565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25752956 + ... + 28902885.

It is an arithmetic number, because the mean of its divisors is an integer number (3907674079632).

Almost surely, 2^{86081036620565} is an apocalyptic number.

86081036620565 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86081036620565 is a deficient number, since it is larger than the sum of its proper divisors (38964533927659).

86081036620565 is a wasteful number, since it uses less digits than its factorization.

86081036620565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54658517.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 86081036620565 in words is "eighty-six trillion, eighty-one billion, thirty-six million, six hundred twenty thousand, five hundred sixty-five".