8386660477440 has 1120 divisors, whose sum is σ = 34600838190336. Its totient is φ = 1908879851520.

The previous prime is 8386660477409. The next prime is 8386660477483. The reversal of 8386660477440 is 447740666838.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1120).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3435746620 + ... + 3435749060.

Almost surely, 2^{8386660477440} is an apocalyptic number.

8386660477440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8386660477440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17300419095168).

8386660477440 is an abundant number, since it is smaller than the sum of its proper divisors (26214177712896).

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

8386660477440 is an equidigital number, since it uses as much as digits as its factorization.

8386660477440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 63.

The spelling of 8386660477440 in words is "eight trillion, three hundred eighty-six billion, six hundred sixty million, four hundred seventy-seven thousand, four hundred forty".