6551607506 has 16 divisors (see below), whose sum is σ = 9852378624. Its totient is φ = 3267491904.

The previous prime is 6551607499. The next prime is 6551607533. The reversal of 6551607506 is 6057061556.

It is a super-3 number, since 3×6551607506³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2616251 + ... + 2618753.

It is an arithmetic number, because the mean of its divisors is an integer number (615773664).

Almost surely, 2^6551607506 is an apocalyptic number.

6551607506 is a deficient number, since it is larger than the sum of its proper divisors (3300771118).

6551607506 is a wasteful number, since it uses less digits than its factorization.

6551607506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 6551607506 is about 80942.0008771713. Note that the first 3 decimals coincide. The cubic root of 6551607506 is about 1871.1816819375.

The spelling of 6551607506 in words is "six billion, five hundred fifty-one million, six hundred seven thousand, five hundred six".