8657223261120 has 560 divisors, whose sum is σ = 35345812252608. Its totient is φ = 1970291589120.

The previous prime is 8657223261101. The next prime is 8657223261121. The reversal of 8657223261120 is 211623227568.

8657223261120 is a `hidden beast` number, since 8 + 6 + 5 + 7 + 2 + 2 + 3 + 2 + 611 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8657223261121) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 42173130 + ... + 42377910.

Almost surely, 2^{8657223261120} is an apocalyptic number.

8657223261120 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 8657223261120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17672906126304).

8657223261120 is an abundant number, since it is smaller than the sum of its proper divisors (26688588991488).

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

8657223261120 is a wasteful number, since it uses less digits than its factorization.

8657223261120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205050 (or 205031 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

Adding to 8657223261120 its reverse (211623227568), we get a palindrome (8868846488688).

The spelling of 8657223261120 in words is "eight trillion, six hundred fifty-seven billion, two hundred twenty-three million, two hundred sixty-one thousand, one hundred twenty".