130766787782866 has 16 divisors (see below), whose sum is σ = 200002709786328. Its totient is φ = 64106066793600.

The previous prime is 130766787782861. The next prime is 130766787782921. The reversal of 130766787782866 is 668287787667031.

It can be written as a sum of positive squares in 4 ways, for example, as 78267126490641 + 52499661292225 = 8846871^2 + 7245665^2 .

It is a super-2 number, since 2×130766787782866² (a number of 29 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 130766787782866.

It is not an unprimeable number, because it can be changed into a prime (130766787782861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712196505 + ... + 1712272876.

Almost surely, 2^{130766787782866} is an apocalyptic number.

130766787782866 is a deficient number, since it is larger than the sum of its proper divisors (69235922003462).

130766787782866 is a wasteful number, since it uses less digits than its factorization.

130766787782866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424469757.

The product of its (nonzero) digits is 9559130112, while the sum is 82.

The spelling of 130766787782866 in words is "one hundred thirty trillion, seven hundred sixty-six billion, seven hundred eighty-seven million, seven hundred eighty-two thousand, eight hundred sixty-six".