140165663 has 16 divisors (see below), whose sum is σ = 167132160. Its totient is φ = 116054400.

The previous prime is 140165653. The next prime is 140165687. The reversal of 140165663 is 366561041.

It is not a de Polignac number, because 140165663 - 2¹⁰ = 140164639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140165653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6293 + ... + 17886.

It is an arithmetic number, because the mean of its divisors is an integer number (10445760).

Almost surely, 2^140165663 is an apocalyptic number.

140165663 is a deficient number, since it is larger than the sum of its proper divisors (26966497).

140165663 is a wasteful number, since it uses less digits than its factorization.

140165663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24238.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 140165663 is about 11839.1580359416. The cubic root of 140165663 is about 519.4541399656.

The spelling of 140165663 in words is "one hundred forty million, one hundred sixty-five thousand, six hundred sixty-three".