1001591064320 has 576 divisors, whose sum is σ = 3034368691200. Its totient is φ = 307711180800.

The previous prime is 1001591064269. The next prime is 1001591064349. The reversal of 1001591064320 is 234601951001.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3539190899 + ... + 3539191181.

It is an arithmetic number, because the mean of its divisors is an integer number (5268001200).

Almost surely, 2^{1001591064320} is an apocalyptic number.

1001591064320 is a gapful number since it is divisible by the number (10) 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 1001591064320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517184345600).

1001591064320 is an abundant number, since it is smaller than the sum of its proper divisors (2032777626880).

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

1001591064320 is a wasteful number, since it uses less digits than its factorization.

1001591064320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 1001591064320 in words is "one trillion, one billion, five hundred ninety-one million, sixty-four thousand, three hundred twenty".