6551457280 has 240 divisors, whose sum is σ = 17321681520. Its totient is φ = 2368077824.

The previous prime is 6551457277. The next prime is 6551457329. The reversal of 6551457280 is 827541556.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36600231 + ... + 36600409.

It is an arithmetic number, because the mean of its divisors is an integer number (72173673).

Almost surely, 2^6551457280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6551457280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8660840760).

6551457280 is an abundant number, since it is smaller than the sum of its proper divisors (10770224240).

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

6551457280 is a wasteful number, since it uses less digits than its factorization.

6551457280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 43.

The square root of 6551457280 is about 80941.0728863906. The cubic root of 6551457280 is about 1871.1673799876.

The spelling of 6551457280 in words is "six billion, five hundred fifty-one million, four hundred fifty-seven thousand, two hundred eighty".