5516464821 has 32 divisors (see below), whose sum is σ = 8495013120. Its totient is φ = 3118984704.

The previous prime is 5516464799. The next prime is 5516464841. The reversal of 5516464821 is 1284646155.

It is not a de Polignac number, because 5516464821 - 2⁶ = 5516464757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5516464841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2363371 + ... + 2365703.

It is an arithmetic number, because the mean of its divisors is an integer number (265469160).

Almost surely, 2^5516464821 is an apocalyptic number.

It is an amenable number.

5516464821 is a deficient number, since it is larger than the sum of its proper divisors (2978548299).

5516464821 is a wasteful number, since it uses less digits than its factorization.

5516464821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3485.

The product of its digits is 230400, while the sum is 42.

The square root of 5516464821 is about 74272.9077187638. The cubic root of 5516464821 is about 1766.9338236345.

The spelling of 5516464821 in words is "five billion, five hundred sixteen million, four hundred sixty-four thousand, eight hundred twenty-one".