11581466361 has 16 divisors (see below), whose sum is σ = 16345940160. Its totient is φ = 7281368640.

The previous prime is 11581466317. The next prime is 11581466441. The reversal of 11581466361 is 16366418511.

It is a happy number.

It is not a de Polignac number, because 11581466361 - 2¹³ = 11581458169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11581466261) 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, 1544170 + ... + 1551651.

It is an arithmetic number, because the mean of its divisors is an integer number (1021621260).

Almost surely, 2^11581466361 is an apocalyptic number.

It is an amenable number.

11581466361 is a deficient number, since it is larger than the sum of its proper divisors (4764473799).

11581466361 is a wasteful number, since it uses less digits than its factorization.

11581466361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095896.

The product of its digits is 103680, while the sum is 42.

The spelling of 11581466361 in words is "eleven billion, five hundred eighty-one million, four hundred sixty-six thousand, three hundred sixty-one".