140561640559 has 2 divisors, whose sum is σ = 140561640560. Its totient is φ = 140561640558.

The previous prime is 140561640553. The next prime is 140561640641. The reversal of 140561640559 is 955046165041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140561640559 - 2²¹ = 140559543407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140561640553) 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 as a sum of consecutive naturals, namely, 70280820279 + 70280820280.

It is an arithmetic number, because the mean of its divisors is an integer number (70280820280).

Almost surely, 2^140561640559 is an apocalyptic number.

140561640559 is a deficient number, since it is larger than the sum of its proper divisors (1).

140561640559 is an equidigital number, since it uses as much as digits as its factorization.

140561640559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 140561640559 in words is "one hundred forty billion, five hundred sixty-one million, six hundred forty thousand, five hundred fifty-nine".