5516551615611 has 4 divisors (see below), whose sum is σ = 7355402154152. Its totient is φ = 3677701077072.

The previous prime is 5516551615583. The next prime is 5516551615637. The reversal of 5516551615611 is 1165161556155.

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

It is not a de Polignac number, because 5516551615611 - 2⁵ = 5516551615579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5516551635611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919425269266 + ... + 919425269271.

It is an arithmetic number, because the mean of its divisors is an integer number (1838850538538).

Almost surely, 2^{5516551615611} is an apocalyptic number.

5516551615611 is a deficient number, since it is larger than the sum of its proper divisors (1838850538541).

5516551615611 is a wasteful number, since it uses less digits than its factorization.

5516551615611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838850538540.

The product of its digits is 675000, while the sum is 48.

The spelling of 5516551615611 in words is "five trillion, five hundred sixteen billion, five hundred fifty-one million, six hundred fifteen thousand, six hundred eleven".