8660688276121 has 16 divisors (see below), whose sum is σ = 10290492720000. Its totient is φ = 7283382039024.

The previous prime is 8660688276091. The next prime is 8660688276127. The reversal of 8660688276121 is 1216728860668.

It is not a de Polignac number, because 8660688276121 - 2⁵ = 8660688276089 is a prime.

It is a super-2 number, since 2×8660688276121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8660688276121.

It is not an unprimeable number, because it can be changed into a prime (8660688276127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238187671 + ... + 238224028.

It is an arithmetic number, because the mean of its divisors is an integer number (643155795000).

Almost surely, 2^{8660688276121} is an apocalyptic number.

It is an amenable number.

8660688276121 is a deficient number, since it is larger than the sum of its proper divisors (1629804443879).

8660688276121 is an equidigital number, since it uses as much as digits as its factorization.

8660688276121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476411773 (or 476411759 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 8660688276121 in words is "eight trillion, six hundred sixty billion, six hundred eighty-eight million, two hundred seventy-six thousand, one hundred twenty-one".