6654959835520 has 128 divisors (see below), whose sum is σ = 15998534596800. Its totient is φ = 2647127040000.

The previous prime is 6654959835457. The next prime is 6654959835521. The reversal of 6654959835520 is 255389594566.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6654959835521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90198645 + ... + 90272395.

Almost surely, 2^{6654959835520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6654959835520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7999267298400).

6654959835520 is an abundant number, since it is smaller than the sum of its proper divisors (9343574761280).

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

6654959835520 is a wasteful number, since it uses less digits than its factorization.

6654959835520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74556 (or 74544 counting only the distinct ones).

The product of its (nonzero) digits is 349920000, while the sum is 67.

The spelling of 6654959835520 in words is "six trillion, six hundred fifty-four billion, nine hundred fifty-nine million, eight hundred thirty-five thousand, five hundred twenty".