140668340129 has 12 divisors (see below), whose sum is σ = 143929828224. Its totient is φ = 137418261552.

The previous prime is 140668340123. The next prime is 140668340159. The reversal of 140668340129 is 921043866041.

It is not a de Polignac number, because 140668340129 - 2³² = 136373372833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140668340129.

It is not an unprimeable number, because it can be changed into a prime (140668340123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69327887 + ... + 69329915.

It is an arithmetic number, because the mean of its divisors is an integer number (11994152352).

Almost surely, 2^140668340129 is an apocalyptic number.

It is an amenable number.

140668340129 is a deficient number, since it is larger than the sum of its proper divisors (3261488095).

140668340129 is an frugal number, since it uses more digits than its factorization.

140668340129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 2803 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 140668340129 in words is "one hundred forty billion, six hundred sixty-eight million, three hundred forty thousand, one hundred twenty-nine".