11553201601 has 4 divisors (see below), whose sum is σ = 11821880752. Its totient is φ = 11284522452.

The previous prime is 11553201577. The next prime is 11553201607. The reversal of 11553201601 is 10610235511.

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 a cyclic number.

It is not a de Polignac number, because 11553201601 - 2⁹ = 11553201089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11553201607) 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, 134339511 + ... + 134339596.

It is an arithmetic number, because the mean of its divisors is an integer number (2955470188).

Almost surely, 2^11553201601 is an apocalyptic number.

It is an amenable number.

11553201601 is a deficient number, since it is larger than the sum of its proper divisors (268679151).

11553201601 is an equidigital number, since it uses as much as digits as its factorization.

11553201601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268679150.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 11553201601 in words is "eleven billion, five hundred fifty-three million, two hundred one thousand, six hundred one".