8106566171780 has 48 divisors (see below), whose sum is σ = 17034468623424. Its totient is φ = 3240592882560.

The previous prime is 8106566171771. The next prime is 8106566171783. The reversal of 8106566171780 is 871716656018.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8106566171783) 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, 251717159 + ... + 251749361.

It is an arithmetic number, because the mean of its divisors is an integer number (354884762988).

Almost surely, 2^{8106566171780} is an apocalyptic number.

It is an amenable number.

8106566171780 is an abundant number, since it is smaller than the sum of its proper divisors (8927902451644).

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

8106566171780 is a wasteful number, since it uses less digits than its factorization.

8106566171780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39716 (or 39714 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 8106566171780 in words is "eight trillion, one hundred six billion, five hundred sixty-six million, one hundred seventy-one thousand, seven hundred eighty".