8556515460 has 48 divisors (see below), whose sum is σ = 26620272000. Its totient is φ = 2281737312.

The previous prime is 8556515449. The next prime is 8556515479. The reversal of 8556515460 is 645156558.

8556515460 is a `hidden beast` number, since 8 + 5 + 56 + 51 + 546 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7922160 + ... + 7923239.

It is an arithmetic number, because the mean of its divisors is an integer number (554589000).

Almost surely, 2^8556515460 is an apocalyptic number.

It is an amenable number.

8556515460 is an abundant number, since it is smaller than the sum of its proper divisors (18063756540).

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

8556515460 is a wasteful number, since it uses less digits than its factorization.

8556515460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15845417 (or 15845409 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The square root of 8556515460 is about 92501.4349077894. The cubic root of 8556515460 is about 2045.3406342706.

It can be divided in two parts, 85565 and 15460, that added together give a triangular number (101025 = T₄₄₉).

The spelling of 8556515460 in words is "eight billion, five hundred fifty-six million, five hundred fifteen thousand, four hundred sixty".