86220185136 has 40 divisors (see below), whose sum is σ = 225031732464. Its totient is φ = 28443770880.

The previous prime is 86220185111. The next prime is 86220185143. The reversal of 86220185136 is 63158102268.

It is a super-2 number, since 2×86220185136² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9254385 + ... + 9263696.

Almost surely, 2^86220185136 is an apocalyptic number.

It is an amenable number.

86220185136 is an abundant number, since it is smaller than the sum of its proper divisors (138811547328).

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

86220185136 is a wasteful number, since it uses less digits than its factorization.

86220185136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18518189 (or 18518183 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 86220185136 in words is "eighty-six billion, two hundred twenty million, one hundred eighty-five thousand, one hundred thirty-six".