1126256564041 has 4 divisors (see below), whose sum is σ = 1287150358912. Its totient is φ = 965362769172.

The previous prime is 1126256564033. The next prime is 1126256564071. The reversal of 1126256564041 is 1404656526211.

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 cyclic number.

It is not a de Polignac number, because 1126256564041 - 2³ = 1126256564033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126256564011) 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, 80446897425 + ... + 80446897438.

It is an arithmetic number, because the mean of its divisors is an integer number (321787589728).

Almost surely, 2^{1126256564041} is an apocalyptic number.

It is an amenable number.

1126256564041 is a deficient number, since it is larger than the sum of its proper divisors (160893794871).

1126256564041 is an equidigital number, since it uses as much as digits as its factorization.

1126256564041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160893794870.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 1126256564041 in words is "one trillion, one hundred twenty-six billion, two hundred fifty-six million, five hundred sixty-four thousand, forty-one".