6699551321088 has 528 divisors, whose sum is σ = 20634429123360. Its totient is φ = 2089569484800.

The previous prime is 6699551321069. The next prime is 6699551321107. The reversal of 6699551321088 is 8801231559966.

6699551321088 is a `hidden beast` number, since 6 + 6 + 9 + 9 + 5 + 513 + 2 + 108 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (6699551321069) and next prime (6699551321107).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2778742603 + ... + 2778745013.

Almost surely, 2^{6699551321088} 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 6699551321088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10317214561680).

6699551321088 is an abundant number, since it is smaller than the sum of its proper divisors (13934877802272).

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

6699551321088 is a wasteful number, since it uses less digits than its factorization.

6699551321088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 6699551321088 in words is "six trillion, six hundred ninety-nine billion, five hundred fifty-one million, three hundred twenty-one thousand, eighty-eight".