86020666440 has 64 divisors (see below), whose sum is σ = 258587760960. Its totient is φ = 22892110080.

The previous prime is 86020666429. The next prime is 86020666463. The reversal of 86020666440 is 4466602068.

It is a junction number, because it is equal to n+sod(n) for n = 86020666392 and 86020666401.

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, 671059 + ... + 788898.

It is an arithmetic number, because the mean of its divisors is an integer number (4040433765).

Almost surely, 2^86020666440 is an apocalyptic number.

It is an amenable number.

86020666440 is an abundant number, since it is smaller than the sum of its proper divisors (172567094520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86020666440 is a wasteful number, since it uses less digits than its factorization.

86020666440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460462 (or 1460458 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 86020666440 in words is "eighty-six billion, twenty million, six hundred sixty-six thousand, four hundred forty".