8768115787666 has 16 divisors (see below), whose sum is σ = 13493590889688. Its totient is φ = 4270579657600.

The previous prime is 8768115787633. The next prime is 8768115787687. The reversal of 8768115787666 is 6667875118678.

It can be written as a sum of positive squares in 4 ways, for example, as 5326960936441 + 3441154851225 = 2308021^2 + 1855035^2 .

It is a super-3 number, since 3×8768115787666³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8768115787592 and 8768115787601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81821065 + ... + 81928156.

Almost surely, 2^{8768115787666} is an apocalyptic number.

8768115787666 is a deficient number, since it is larger than the sum of its proper divisors (4725475102022).

8768115787666 is a wasteful number, since it uses less digits than its factorization.

8768115787666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163749917.

The product of its digits is 1137991680, while the sum is 76.

The spelling of 8768115787666 in words is "eight trillion, seven hundred sixty-eight billion, one hundred fifteen million, seven hundred eighty-seven thousand, six hundred sixty-six".