6506651560 has 64 divisors (see below), whose sum is σ = 14735001600. Its totient is φ = 2585826816.

The previous prime is 6506651537. The next prime is 6506651561. The reversal of 6506651560 is 651566056.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6506651561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985337 + ... + 5986423.

It is an arithmetic number, because the mean of its divisors is an integer number (230234400).

Almost surely, 2^6506651560 is an apocalyptic number.

It is an amenable number.

6506651560 is an abundant number, since it is smaller than the sum of its proper divisors (8228350040).

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

6506651560 is a wasteful number, since it uses less digits than its factorization.

6506651560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 6506651560 is about 80663.8181590730. The cubic root of 6506651560 is about 1866.8919516928.

The spelling of 6506651560 in words is "six billion, five hundred six million, six hundred fifty-one thousand, five hundred sixty".