11056641537 has 4 divisors (see below), whose sum is σ = 14742188720. Its totient is φ = 7371094356.

The previous prime is 11056641517. The next prime is 11056641551. The reversal of 11056641537 is 73514665011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-11056641537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11056641495 and 11056641504.

It is not an unprimeable number, because it can be changed into a prime (11056641517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842773587 + ... + 1842773592.

It is an arithmetic number, because the mean of its divisors is an integer number (3685547180).

Almost surely, 2^11056641537 is an apocalyptic number.

It is an amenable number.

11056641537 is a deficient number, since it is larger than the sum of its proper divisors (3685547183).

11056641537 is an equidigital number, since it uses as much as digits as its factorization.

11056641537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685547182.

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 11056641537 in words is "eleven billion, fifty-six million, six hundred forty-one thousand, five hundred thirty-seven".