140035646044661 has 8 divisors (see below), whose sum is σ = 142394768291424. Its totient is φ = 137678570763120.

The previous prime is 140035646044649. The next prime is 140035646044699. The reversal of 140035646044661 is 166440646530041.

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 140035646044661 - 2¹⁸ = 140035645782517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140035646041661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511603331 + ... + 511876976.

It is an arithmetic number, because the mean of its divisors is an integer number (17799346036428).

Almost surely, 2^{140035646044661} is an apocalyptic number.

It is an amenable number.

140035646044661 is a deficient number, since it is larger than the sum of its proper divisors (2359122246763).

140035646044661 is a wasteful number, since it uses less digits than its factorization.

140035646044661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023482611.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 140035646044661 in words is "one hundred forty trillion, thirty-five billion, six hundred forty-six million, forty-four thousand, six hundred sixty-one".