86640840443336 has 8 divisors (see below), whose sum is σ = 162451575831270. Its totient is φ = 43320420221664.

The previous prime is 86640840443323. The next prime is 86640840443351. The reversal of 86640840443336 is 63334404804668.

It can be written as a sum of positive squares in only one way, i.e., 63994720108900 + 22646120334436 = 7999670^2 + 4758794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5415052527701 + ... + 5415052527716.

Almost surely, 2^{86640840443336} is an apocalyptic number.

It is an amenable number.

86640840443336 is a deficient number, since it is larger than the sum of its proper divisors (75810735387934).

86640840443336 is a wasteful number, since it uses less digits than its factorization.

86640840443336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10830105055423 (or 10830105055419 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 59.

The spelling of 86640840443336 in words is "eighty-six trillion, six hundred forty billion, eight hundred forty million, four hundred forty-three thousand, three hundred thirty-six".