140206365161 has 8 divisors (see below), whose sum is σ = 141108859584. Its totient is φ = 139303990800.

The previous prime is 140206365139. The next prime is 140206365193. The reversal of 140206365161 is 161563602041.

140206365161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140206365161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140206368161) 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 7 ways as a sum of consecutive naturals, for example, 4403846 + ... + 4435568.

It is an arithmetic number, because the mean of its divisors is an integer number (17638607448).

Almost surely, 2^140206365161 is an apocalyptic number.

It is an amenable number.

140206365161 is a deficient number, since it is larger than the sum of its proper divisors (902494423).

140206365161 is a wasteful number, since it uses less digits than its factorization.

140206365161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60031.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 140206365161 in words is "one hundred forty billion, two hundred six million, three hundred sixty-five thousand, one hundred sixty-one".