6503350656 has 64 divisors (see below), whose sum is σ = 18844948800. Its totient is φ = 1970711040.

The previous prime is 6503350649. The next prime is 6503350657. The reversal of 6503350656 is 6560533056.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503350657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765586 + ... + 774033.

It is an arithmetic number, because the mean of its divisors is an integer number (294452325).

Almost surely, 2^6503350656 is an apocalyptic number.

6503350656 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6503350656 is an abundant number, since it is smaller than the sum of its proper divisors (12341598144).

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

6503350656 is a wasteful number, since it uses less digits than its factorization.

6503350656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539647 (or 1539635 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 39.

The square root of 6503350656 is about 80643.3546921257. The cubic root of 6503350656 is about 1866.5761992437.

The spelling of 6503350656 in words is "six billion, five hundred three million, three hundred fifty thousand, six hundred fifty-six".