86221862051216 has 80 divisors (see below), whose sum is σ = 172136548649520. Its totient is φ = 41820672890880.

The previous prime is 86221862051179. The next prime is 86221862051233. The reversal of 86221862051216 is 61215026812268.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 164624947600 + 86057237103616 = 405740^2 + 9276704^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24929870 + ... + 28176978.

It is an arithmetic number, because the mean of its divisors is an integer number (2151706858119).

Almost surely, 2^{86221862051216} is an apocalyptic number.

It is an amenable number.

86221862051216 is a deficient number, since it is larger than the sum of its proper divisors (85914686598304).

86221862051216 is a wasteful number, since it uses less digits than its factorization.

86221862051216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247524 (or 3247518 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 86221862051216 in words is "eighty-six trillion, two hundred twenty-one billion, eight hundred sixty-two million, fifty-one thousand, two hundred sixteen".