6555531969 has 24 divisors (see below), whose sum is σ = 10893514112. Its totient is φ = 3721204800.

The previous prime is 6555531947. The next prime is 6555531971. The reversal of 6555531969 is 9691355556.

It is not a de Polignac number, because 6555531969 - 2⁵ = 6555531937 is a prime.

It is a super-2 number, since 2×6555531969² = 85949998793162033922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6555531919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335044 + ... + 354069.

Almost surely, 2^6555531969 is an apocalyptic number.

It is an amenable number.

6555531969 is a deficient number, since it is larger than the sum of its proper divisors (4337982143).

6555531969 is a wasteful number, since it uses less digits than its factorization.

6555531969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689277 (or 689274 counting only the distinct ones).

The product of its digits is 5467500, while the sum is 54.

The square root of 6555531969 is about 80966.2396866743. The cubic root of 6555531969 is about 1871.5552247416. Note that the first 3 decimals are identical.

The spelling of 6555531969 in words is "six billion, five hundred fifty-five million, five hundred thirty-one thousand, nine hundred sixty-nine".