6547642560 has 112 divisors (see below), whose sum is σ = 23098658400. Its totient is φ = 1746035712.

The previous prime is 6547642511. The next prime is 6547642567. The reversal of 6547642560 is 652467456.

6547642560 is a `hidden beast` number, since 6 + 5 + 47 + 6 + 42 + 560 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (6547642567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370275 + ... + 387554.

Almost surely, 2^6547642560 is an apocalyptic number.

6547642560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6547642560 is an abundant number, since it is smaller than the sum of its proper divisors (16551015840).

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

6547642560 is a wasteful number, since it uses less digits than its factorization.

6547642560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757855 (or 757839 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The square root of 6547642560 is about 80917.5046575214. The cubic root of 6547642560 is about 1870.8041343165.

The spelling of 6547642560 in words is "six billion, five hundred forty-seven million, six hundred forty-two thousand, five hundred sixty".