11580021076 has 24 divisors (see below), whose sum is σ = 21831184424. Its totient is φ = 5342837760.

The previous prime is 11580021043. The next prime is 11580021083. The reversal of 11580021076 is 67012008511.

It can be written as a sum of positive squares in 4 ways, for example, as 371564176 + 11208456900 = 19276^2 + 105870^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126616 + ... + 197968.

Almost surely, 2^11580021076 is an apocalyptic number.

It is an amenable number.

11580021076 is a deficient number, since it is larger than the sum of its proper divisors (10251163348).

11580021076 is a wasteful number, since it uses less digits than its factorization.

11580021076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74491 (or 74489 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

Adding to 11580021076 its reverse (67012008511), we get a palindrome (78592029587).

The spelling of 11580021076 in words is "eleven billion, five hundred eighty million, twenty-one thousand, seventy-six".