140165995887 has 32 divisors (see below), whose sum is σ = 215606784000. Its totient is φ = 89888732640.

The previous prime is 140165995867. The next prime is 140165995903. The reversal of 140165995887 is 788599561041.

140165995887 is a `hidden beast` number, since 1 + 40 + 1 + 6 + 5 + 9 + 9 + 588 + 7 = 666.

140165995887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140165995887 - 2¹¹ = 140165993839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140165995867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118087 + ... + 542472.

It is an arithmetic number, because the mean of its divisors is an integer number (6737712000).

Almost surely, 2^140165995887 is an apocalyptic number.

140165995887 is a deficient number, since it is larger than the sum of its proper divisors (75440788113).

140165995887 is a wasteful number, since it uses less digits than its factorization.

140165995887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660868 (or 660862 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 63.

The spelling of 140165995887 in words is "one hundred forty billion, one hundred sixty-five million, nine hundred ninety-five thousand, eight hundred eighty-seven".