6516649419 has 16 divisors (see below), whose sum is σ = 9934970880. Its totient is φ = 3721985280.

The previous prime is 6516649411. The next prime is 6516649427. The reversal of 6516649419 is 9149466156.

It is a happy number.

6516649419 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6516649411) and next prime (6516649427).

It is not a de Polignac number, because 6516649419 - 2³ = 6516649411 is a prime.

It is a super-2 number, since 2×6516649419² = 84933439300306075122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6516649411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30859 + ... + 118260.

It is an arithmetic number, because the mean of its divisors is an integer number (620935680).

Almost surely, 2^6516649419 is an apocalyptic number.

6516649419 is a deficient number, since it is larger than the sum of its proper divisors (3418321461).

6516649419 is a wasteful number, since it uses less digits than its factorization.

6516649419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151210.

The product of its digits is 1399680, while the sum is 51.

The square root of 6516649419 is about 80725.7667600624. The cubic root of 6516649419 is about 1867.8476593795.

The spelling of 6516649419 in words is "six billion, five hundred sixteen million, six hundred forty-nine thousand, four hundred nineteen".