86641655653138 has 16 divisors (see below), whose sum is σ = 131438324287296. Its totient is φ = 42830253128880.

The previous prime is 86641655653121. The next prime is 86641655653207. The reversal of 86641655653138 is 83135655614668.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342932908 + ... + 343185463.

It is an arithmetic number, because the mean of its divisors is an integer number (8214895267956).

Almost surely, 2^{86641655653138} is an apocalyptic number.

86641655653138 is a deficient number, since it is larger than the sum of its proper divisors (44796668634158).

86641655653138 is a wasteful number, since it uses less digits than its factorization.

86641655653138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686119089.

The product of its digits is 373248000, while the sum is 67.

The spelling of 86641655653138 in words is "eighty-six trillion, six hundred forty-one billion, six hundred fifty-five million, six hundred fifty-three thousand, one hundred thirty-eight".