5511685899204 has 27 divisors (see below), whose sum is σ = 13932352740943. Its totient is φ = 1837223937672.

The previous prime is 5511685899197. The next prime is 5511685899221. The reversal of 5511685899204 is 4029985861155.

The square root of 5511685899204 is 2347698.

It is a perfect power (a square), and thus also a powerful number.

5511685899204 is a `hidden beast` number, since 5 + 511 + 6 + 8 + 5 + 8 + 99 + 20 + 4 = 666.

It is a super-3 number, since 3×5511685899204³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13890547 + ... + 14281829.

Almost surely, 2^{5511685899204} is an apocalyptic number.

5511685899204 is the 2347698-th square number.

It is an amenable number.

5511685899204 is an abundant number, since it is smaller than the sum of its proper divisors (8420666841739).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5511685899204 is an frugal number, since it uses more digits than its factorization.

5511685899204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782576 (or 391288 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 63.

The spelling of 5511685899204 in words is "five trillion, five hundred eleven billion, six hundred eighty-five million, eight hundred ninety-nine thousand, two hundred four".