6555516537 has 4 divisors (see below), whose sum is σ = 8740688720. Its totient is φ = 4370344356.

The previous prime is 6555516509. The next prime is 6555516563. The reversal of 6555516537 is 7356155556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6555516537 - 2¹¹ = 6555514489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6555516437) 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, 1092586087 + ... + 1092586092.

It is an arithmetic number, because the mean of its divisors is an integer number (2185172180).

Almost surely, 2^6555516537 is an apocalyptic number.

It is an amenable number.

6555516537 is a deficient number, since it is larger than the sum of its proper divisors (2185172183).

6555516537 is a wasteful number, since it uses less digits than its factorization.

6555516537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185172182.

The product of its digits is 2362500, while the sum is 48.

The square root of 6555516537 is about 80966.1443876390. The cubic root of 6555516537 is about 1871.5537561670.

The spelling of 6555516537 in words is "six billion, five hundred fifty-five million, five hundred sixteen thousand, five hundred thirty-seven".