11801065583 has 4 divisors (see below), whose sum is σ = 11950446240. Its totient is φ = 11651684928.

The previous prime is 11801065553. The next prime is 11801065597. The reversal of 11801065583 is 38556010811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11801065583 - 2⁶ = 11801065519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11801065553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74690210 + ... + 74690367.

It is an arithmetic number, because the mean of its divisors is an integer number (2987611560).

Almost surely, 2^11801065583 is an apocalyptic number.

11801065583 is a deficient number, since it is larger than the sum of its proper divisors (149380657).

11801065583 is an equidigital number, since it uses as much as digits as its factorization.

11801065583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149380656.

The product of its (nonzero) digits is 28800, while the sum is 38.

The spelling of 11801065583 in words is "eleven billion, eight hundred one million, sixty-five thousand, five hundred eighty-three".