5516646445 has 4 divisors (see below), whose sum is σ = 6619975740. Its totient is φ = 4413317152.

The previous prime is 5516646413. The next prime is 5516646451. The reversal of 5516646445 is 5446466155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3881414601 + 1635231844 = 62301^2 + 40438^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516646445 - 2⁵ = 5516646413 is a prime.

It is a super-2 number, since 2×5516646445² = 60866775998262276050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5516646395 and 5516646404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551664640 + ... + 551664649.

It is an arithmetic number, because the mean of its divisors is an integer number (1654993935).

Almost surely, 2^5516646445 is an apocalyptic number.

It is an amenable number.

5516646445 is a deficient number, since it is larger than the sum of its proper divisors (1103329295).

5516646445 is a wasteful number, since it uses less digits than its factorization.

5516646445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103329294.

The product of its digits is 1728000, while the sum is 46.

The square root of 5516646445 is about 74274.1303887161. The cubic root of 5516646445 is about 1766.9532149220.

The spelling of 5516646445 in words is "five billion, five hundred sixteen million, six hundred forty-six thousand, four hundred forty-five".