140664626161 has 8 divisors (see below), whose sum is σ = 144479640704. Its totient is φ = 136850310000.

The previous prime is 140664626159. The next prime is 140664626177. The reversal of 140664626161 is 161626466041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140664626161 - 2¹ = 140664626159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140664626191) by changing a digit.

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, 247336 + ... + 585238.

It is an arithmetic number, because the mean of its divisors is an integer number (18059955088).

Almost surely, 2^140664626161 is an apocalyptic number.

It is an amenable number.

140664626161 is a deficient number, since it is larger than the sum of its proper divisors (3815014543).

140664626161 is a wasteful number, since it uses less digits than its factorization.

140664626161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349191.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 140664626161 in words is "one hundred forty billion, six hundred sixty-four million, six hundred twenty-six thousand, one hundred sixty-one".