86215066646 has 16 divisors (see below), whose sum is σ = 132045357600. Its totient is φ = 42209352768.

The previous prime is 86215066633. The next prime is 86215066667. The reversal of 86215066646 is 64666051268.

It is a junction number, because it is equal to n+sod(n) for n = 86215066594 and 86215066603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332901 + ... + 2369568.

It is an arithmetic number, because the mean of its divisors is an integer number (8252834850).

Almost surely, 2^86215066646 is an apocalyptic number.

86215066646 is a deficient number, since it is larger than the sum of its proper divisors (45830290954).

86215066646 is a wasteful number, since it uses less digits than its factorization.

86215066646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702663.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 86215066646 in words is "eighty-six billion, two hundred fifteen million, sixty-six thousand, six hundred forty-six".