6615716226240 has 448 divisors, whose sum is σ = 23111836001280. Its totient is φ = 1590036480000.

The previous prime is 6615716226173. The next prime is 6615716226247. The reversal of 6615716226240 is 426226175166.

It is a super-2 number, since 2×6615716226240² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6615716226240.

It is not an unprimeable number, because it can be changed into a prime (6615716226247) 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 63 ways as a sum of consecutive naturals, for example, 862653126 + ... + 862660794.

Almost surely, 2^{6615716226240} is an apocalyptic number.

6615716226240 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 6615716226240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11555918000640).

6615716226240 is an abundant number, since it is smaller than the sum of its proper divisors (16496119775040).

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

6615716226240 is a wasteful number, since it uses less digits than its factorization.

6615716226240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392 (or 8382 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 6615716226240 in words is "six trillion, six hundred fifteen billion, seven hundred sixteen million, two hundred twenty-six thousand, two hundred forty".