11557081039 has 8 divisors (see below), whose sum is σ = 13211927840. Its totient is φ = 9903193056.

The previous prime is 11557081031. The next prime is 11557081069. The reversal of 11557081039 is 93018075511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11557081039 - 2³ = 11557081031 is a prime.

It is a super-2 number, since 2×11557081039² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11557080992 and 11557081010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557081031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213684 + ... + 262249.

It is an arithmetic number, because the mean of its divisors is an integer number (1651490980).

Almost surely, 2^11557081039 is an apocalyptic number.

11557081039 is a deficient number, since it is larger than the sum of its proper divisors (1654846801).

11557081039 is an equidigital number, since it uses as much as digits as its factorization.

11557081039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479409.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 11557081039 in words is "eleven billion, five hundred fifty-seven million, eighty-one thousand, thirty-nine".