8166163612240 has 40 divisors (see below), whose sum is σ = 19427872974048. Its totient is φ = 3190501130880.

The previous prime is 8166163612237. The next prime is 8166163612253. The reversal of 8166163612240 is 422163616618.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186938946 + ... + 1186945825.

Almost surely, 2^{8166163612240} is an apocalyptic number.

8166163612240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8166163612240 is an abundant number, since it is smaller than the sum of its proper divisors (11261709361808).

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

8166163612240 is a wasteful number, since it uses less digits than its factorization.

8166163612240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373884827 (or 2373884821 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 8166163612240 in words is "eight trillion, one hundred sixty-six billion, one hundred sixty-three million, six hundred twelve thousand, two hundred forty".