11903680553 has 8 divisors (see below), whose sum is σ = 12158508672. Its totient is φ = 11648917456.

The previous prime is 11903680499. The next prime is 11903680573. The reversal of 11903680553 is 35508630911.

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

It is a cyclic number.

It is not a de Polignac number, because 11903680553 - 2²⁶ = 11836571689 is a prime.

It is a super-2 number, since 2×11903680553² (a number of 21 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 11903680553.

It is not an unprimeable number, because it can be changed into a prime (11903680573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603026 + ... + 622452.

It is an arithmetic number, because the mean of its divisors is an integer number (1519813584).

Almost surely, 2^11903680553 is an apocalyptic number.

It is an amenable number.

11903680553 is a deficient number, since it is larger than the sum of its proper divisors (254828119).

11903680553 is a wasteful number, since it uses less digits than its factorization.

11903680553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32511.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 11903680553 in words is "eleven billion, nine hundred three million, six hundred eighty thousand, five hundred fifty-three".