1161307140205 has 16 divisors (see below), whose sum is σ = 1433739250944. Its totient is φ = 902353210560.

The previous prime is 1161307140167. The next prime is 1161307140209. The reversal of 1161307140205 is 5020417031611.

It is a de Polignac number, because none of the positive numbers 2^k-1161307140205 is a prime.

It is a super-2 number, since 2×1161307140205² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161307140209) 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 15 ways as a sum of consecutive naturals, for example, 5391157 + ... + 5602426.

It is an arithmetic number, because the mean of its divisors is an integer number (89608703184).

Almost surely, 2^{1161307140205} is an apocalyptic number.

It is an amenable number.

1161307140205 is a deficient number, since it is larger than the sum of its proper divisors (272432110739).

1161307140205 is a wasteful number, since it uses less digits than its factorization.

1161307140205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10994196.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 1161307140205 in words is "one trillion, one hundred sixty-one billion, three hundred seven million, one hundred forty thousand, two hundred five".