40539911166 has 12 divisors (see below), whose sum is σ = 87836474232. Its totient is φ = 13513303716.

The previous prime is 40539911123. The next prime is 40539911171. The reversal of 40539911166 is 66111993504.

40539911166 is a `hidden beast` number, since 40 + 539 + 9 + 1 + 11 + 66 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1126108626 + ... + 1126108661.

It is an arithmetic number, because the mean of its divisors is an integer number (7319706186).

Almost surely, 2^40539911166 is an apocalyptic number.

40539911166 is an abundant number, since it is smaller than the sum of its proper divisors (47296563066).

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

40539911166 is a wasteful number, since it uses less digits than its factorization.

40539911166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252217295 (or 2252217292 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 40539911166 in words is "forty billion, five hundred thirty-nine million, nine hundred eleven thousand, one hundred sixty-six".