11348653581 has 16 divisors (see below), whose sum is σ = 16969953600. Its totient is φ = 7495059024.

The previous prime is 11348653571. The next prime is 11348653601. The reversal of 11348653581 is 18535684311.

11348653581 is a `hidden beast` number, since 1 + 1 + 3 + 4 + 8 + 65 + 3 + 581 = 666.

11348653581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11348653581 - 2¹¹ = 11348651533 is a prime.

It is a super-2 number, since 2×11348653581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11348653571) 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 in 15 ways as a sum of consecutive naturals, for example, 1961226 + ... + 1967003.

It is an arithmetic number, because the mean of its divisors is an integer number (1060622100).

Almost surely, 2^11348653581 is an apocalyptic number.

It is an amenable number.

11348653581 is a deficient number, since it is larger than the sum of its proper divisors (5621300019).

11348653581 is a wasteful number, since it uses less digits than its factorization.

11348653581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928345 (or 3928339 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The spelling of 11348653581 in words is "eleven billion, three hundred forty-eight million, six hundred fifty-three thousand, five hundred eighty-one".