8581237660 has 24 divisors (see below), whose sum is σ = 18022900896. Its totient is φ = 3432056640.

The previous prime is 8581237633. The next prime is 8581237667. The reversal of 8581237660 is 667321858.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8581237660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8581237667) by changing a digit.

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, 166590 + ... + 211930.

It is an arithmetic number, because the mean of its divisors is an integer number (750954204).

Almost surely, 2^8581237660 is an apocalyptic number.

It is an amenable number.

8581237660 is an abundant number, since it is smaller than the sum of its proper divisors (9441663236).

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

8581237660 is a wasteful number, since it uses less digits than its factorization.

8581237660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54813 (or 54811 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 8581237660 is about 92634.9699627522. The cubic root of 8581237660 is about 2047.3085965523.

The spelling of 8581237660 in words is "eight billion, five hundred eighty-one million, two hundred thirty-seven thousand, six hundred sixty".