86661308200 has 24 divisors (see below), whose sum is σ = 201487542030. Its totient is φ = 34664523200.

The previous prime is 86661308183. The next prime is 86661308207. The reversal of 86661308200 is 280316668.

It can be written as a sum of positive squares in 3 ways, for example, as 47640046756 + 39021261444 = 218266^2 + 197538^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (86661308207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216653071 + ... + 216653470.

Almost surely, 2^86661308200 is an apocalyptic number.

It is an amenable number.

86661308200 is an abundant number, since it is smaller than the sum of its proper divisors (114826233830).

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

86661308200 is a wasteful number, since it uses less digits than its factorization.

86661308200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433306557 (or 433306548 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 86661308200 in words is "eighty-six billion, six hundred sixty-one million, three hundred eight thousand, two hundred".