6551133040 has 40 divisors (see below), whose sum is σ = 15285258288. Its totient is φ = 2611184640.

The previous prime is 6551133011. The next prime is 6551133047. The reversal of 6551133040 is 403311556.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6551133047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122041 + ... + 167320.

Almost surely, 2^6551133040 is an apocalyptic number.

It is an amenable number.

6551133040 is an abundant number, since it is smaller than the sum of its proper divisors (8734125248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6551133040 is a wasteful number, since it uses less digits than its factorization.

6551133040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289657 (or 289651 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 6551133040 is about 80939.0699229983. The cubic root of 6551133040 is about 1871.1365106560.

Adding to 6551133040 its reverse (403311556), we get a palindrome (6954444596).

The spelling of 6551133040 in words is "six billion, five hundred fifty-one million, one hundred thirty-three thousand, forty".