6698919953232 has 640 divisors, whose sum is σ = 22361813752320. Its totient is φ = 1925493866496.

The previous prime is 6698919953189. The next prime is 6698919953281. The reversal of 6698919953232 is 2323599198966.

6698919953232 is a `hidden beast` number, since 6 + 6 + 9 + 89 + 1 + 9 + 9 + 532 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1059449623 + ... + 1059455945.

It is an arithmetic number, because the mean of its divisors is an integer number (34940333988).

Almost surely, 2^{6698919953232} 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 6698919953232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11180906876160).

6698919953232 is an abundant number, since it is smaller than the sum of its proper divisors (15662893799088).

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

6698919953232 is a wasteful number, since it uses less digits than its factorization.

6698919953232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519 (or 6495 counting only the distinct ones).

The product of its digits is 340122240, while the sum is 72.

The spelling of 6698919953232 in words is "six trillion, six hundred ninety-eight billion, nine hundred nineteen million, nine hundred fifty-three thousand, two hundred thirty-two".