6400360350720 has 704 divisors, whose sum is σ = 26833792204800. Its totient is φ = 1415741276160.

The previous prime is 6400360350719. The next prime is 6400360350733. The reversal of 6400360350720 is 270530630046.

6400360350720 is a `hidden beast` number, since 6 + 40 + 0 + 3 + 603 + 5 + 0 + 7 + 2 + 0 = 666.

It is a super-2 number, since 2×6400360350720² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29891401 + ... + 30104759.

Almost surely, 2^{6400360350720} is an apocalyptic number.

6400360350720 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 6400360350720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13416896102400).

6400360350720 is an abundant number, since it is smaller than the sum of its proper divisors (20433431854080).

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

6400360350720 is a wasteful number, since it uses less digits than its factorization.

6400360350720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213431 (or 213407 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Adding to 6400360350720 its reverse (270530630046), we get a palindrome (6670890980766).

The spelling of 6400360350720 in words is "six trillion, four hundred billion, three hundred sixty million, three hundred fifty thousand, seven hundred twenty".