6615547560 has 128 divisors (see below), whose sum is σ = 22763289600. Its totient is φ = 1707229440.

The previous prime is 6615547559. The next prime is 6615547567. The reversal of 6615547560 is 657455166.

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 (6615547567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65319 + ... + 132278.

It is an arithmetic number, because the mean of its divisors is an integer number (177838200).

Almost surely, 2^6615547560 is an apocalyptic number.

6615547560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6615547560 is an abundant number, since it is smaller than the sum of its proper divisors (16147742040).

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

6615547560 is a wasteful number, since it uses less digits than its factorization.

6615547560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197648 (or 197638 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 6615547560 is about 81336.0163765106. The cubic root of 6615547560 is about 1877.2492175986.

The spelling of 6615547560 in words is "six billion, six hundred fifteen million, five hundred forty-seven thousand, five hundred sixty".