140263366059961 has 2 divisors, whose sum is σ = 140263366059962. Its totient is φ = 140263366059960.

The previous prime is 140263366059937. The next prime is 140263366060049. The reversal of 140263366059961 is 169950663362041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130366956087225 + 9896409972736 = 11417835^2 + 3145856^2 .

It is an emirp because it is prime and its reverse (169950663362041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140263366059961 - 2¹⁵ = 140263366027193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140263366059961.

It is not a weakly prime, because it can be changed into another prime (140263366459961) 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 as a sum of consecutive naturals, namely, 70131683029980 + 70131683029981.

It is an arithmetic number, because the mean of its divisors is an integer number (70131683029981).

Almost surely, 2^{140263366059961} is an apocalyptic number.

It is an amenable number.

140263366059961 is a deficient number, since it is larger than the sum of its proper divisors (1).

140263366059961 is an equidigital number, since it uses as much as digits as its factorization.

140263366059961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37791360, while the sum is 61.

The spelling of 140263366059961 in words is "one hundred forty trillion, two hundred sixty-three billion, three hundred sixty-six million, fifty-nine thousand, nine hundred sixty-one".