6591274560 has 560 divisors, whose sum is σ = 26105705472. Its totient is φ = 1567641600.

The previous prime is 6591274549. The next prime is 6591274583. The reversal of 6591274560 is 654721956.

6591274560 is a `hidden beast` number, since 6 + 5 + 9 + 12 + 74 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10445445 + ... + 10446075.

Almost surely, 2^6591274560 is an apocalyptic number.

6591274560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6591274560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13052852736).

6591274560 is an abundant number, since it is smaller than the sum of its proper divisors (19514430912).

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

6591274560 is a wasteful number, since it uses less digits than its factorization.

6591274560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 6591274560 is about 81186.6649148738. The cubic root of 6591274560 is about 1874.9504754919.

The spelling of 6591274560 in words is "six billion, five hundred ninety-one million, two hundred seventy-four thousand, five hundred sixty".