11006533254621 has 4 divisors (see below), whose sum is σ = 14675377672832. Its totient is φ = 7337688836412.

The previous prime is 11006533254593. The next prime is 11006533254643. The reversal of 11006533254621 is 12645233560011.

It is a happy number.

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 not a de Polignac number, because 11006533254621 - 2⁵ = 11006533254589 is a prime.

It is a super-2 number, since 2×11006533254621² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11006533254621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11006533259621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1834422209101 + ... + 1834422209106.

It is an arithmetic number, because the mean of its divisors is an integer number (3668844418208).

Almost surely, 2^{11006533254621} is an apocalyptic number.

It is an amenable number.

11006533254621 is a deficient number, since it is larger than the sum of its proper divisors (3668844418211).

11006533254621 is an equidigital number, since it uses as much as digits as its factorization.

11006533254621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668844418210.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 11006533254621 in words is "eleven trillion, six billion, five hundred thirty-three million, two hundred fifty-four thousand, six hundred twenty-one".