6453506660 has 48 divisors (see below), whose sum is σ = 13791036672. Its totient is φ = 2536195200.

The previous prime is 6453506581. The next prime is 6453506713. The reversal of 6453506660 is 666053546.

It is a happy number.

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, 408305 + ... + 423815.

It is an arithmetic number, because the mean of its divisors is an integer number (287313264).

Almost surely, 2^6453506660 is an apocalyptic number.

It is an amenable number.

6453506660 is an abundant number, since it is smaller than the sum of its proper divisors (7337530012).

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

6453506660 is a wasteful number, since it uses less digits than its factorization.

6453506660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15884 (or 15882 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The square root of 6453506660 is about 80333.7205661483. The cubic root of 6453506660 is about 1861.7952624635.

The spelling of 6453506660 in words is "six billion, four hundred fifty-three million, five hundred six thousand, six hundred sixty".