11326526561 has 8 divisors (see below), whose sum is σ = 12947503680. Its totient is φ = 9706274928.

The previous prime is 11326526557. The next prime is 11326526567. The reversal of 11326526561 is 16562562311.

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

It is not a de Polignac number, because 11326526561 - 2² = 11326526557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11326526567) 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, 147491 + ... + 210728.

It is an arithmetic number, because the mean of its divisors is an integer number (1618437960).

Almost surely, 2^11326526561 is an apocalyptic number.

It is an amenable number.

11326526561 is a deficient number, since it is larger than the sum of its proper divisors (1620977119).

11326526561 is an equidigital number, since it uses as much as digits as its factorization.

11326526561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362743.

The product of its digits is 64800, while the sum is 38.

The spelling of 11326526561 in words is "eleven billion, three hundred twenty-six million, five hundred twenty-six thousand, five hundred sixty-one".