11555204866583 has 8 divisors (see below), whose sum is σ = 13661325950880. Its totient is φ = 9562928165280.

The previous prime is 11555204866567. The next prime is 11555204866589. The reversal of 11555204866583 is 38566840255511.

It is a happy number.

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

It is not a de Polignac number, because 11555204866583 - 2⁴ = 11555204866567 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 (11555204866589) 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, 28461095528 + ... + 28461095933.

It is an arithmetic number, because the mean of its divisors is an integer number (1707665743860).

Almost surely, 2^{11555204866583} is an apocalyptic number.

11555204866583 is a deficient number, since it is larger than the sum of its proper divisors (2106121084297).

11555204866583 is an equidigital number, since it uses as much as digits as its factorization.

11555204866583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56922191497.

The product of its (nonzero) digits is 34560000, while the sum is 59.

The spelling of 11555204866583 in words is "eleven trillion, five hundred fifty-five billion, two hundred four million, eight hundred sixty-six thousand, five hundred eighty-three".