86605882155621 has 32 divisors (see below), whose sum is σ = 135906254265600. Its totient is φ = 54319389626880.

The previous prime is 86605882155619. The next prime is 86605882155629. The reversal of 86605882155621 is 12655128850668.

86605882155621 is a `hidden beast` number, since 8 + 6 + 6 + 0 + 58 + 8 + 2 + 1 + 556 + 21 = 666.

It is not a de Polignac number, because 86605882155621 - 2¹ = 86605882155619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86605882155629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36265281 + ... + 38579558.

It is an arithmetic number, because the mean of its divisors is an integer number (4247070445800).

Almost surely, 2^{86605882155621} is an apocalyptic number.

It is an amenable number.

86605882155621 is a deficient number, since it is larger than the sum of its proper divisors (49300372109979).

86605882155621 is a wasteful number, since it uses less digits than its factorization.

86605882155621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74847386 (or 74847380 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 63.

The spelling of 86605882155621 in words is "eighty-six trillion, six hundred five billion, eight hundred eighty-two million, one hundred fifty-five thousand, six hundred twenty-one".