6495618554880 has 2816 divisors, whose sum is σ = 28001167810560. Its totient is φ = 1248539443200.

The previous prime is 6495618554879. The next prime is 6495618554903. The reversal of 6495618554880 is 884558165946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 91487585245 + ... + 91487585315.

Almost surely, 2^{6495618554880} is an apocalyptic number.

6495618554880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6495618554880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14000583905280).

6495618554880 is an abundant number, since it is smaller than the sum of its proper divisors (21505549255680).

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

6495618554880 is a wasteful number, since it uses less digits than its factorization.

6495618554880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 331776000, while the sum is 69.

The spelling of 6495618554880 in words is "six trillion, four hundred ninety-five billion, six hundred eighteen million, five hundred fifty-four thousand, eight hundred eighty".