1613220325760 has 128 divisors (see below), whose sum is σ = 4100556182400. Its totient is φ = 604787900416.

The previous prime is 1613220325753. The next prime is 1613220325823. The reversal of 1613220325760 is 675230223161.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290124 + ... + 2910516.

It is an arithmetic number, because the mean of its divisors is an integer number (32035595175).

Almost surely, 2^{1613220325760} is an apocalyptic number.

1613220325760 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 1613220325760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2050278091200).

1613220325760 is an abundant number, since it is smaller than the sum of its proper divisors (2487335856640).

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

1613220325760 is a wasteful number, since it uses less digits than its factorization.

1613220325760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620668 (or 620656 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 1613220325760 in words is "one trillion, six hundred thirteen billion, two hundred twenty million, three hundred twenty-five thousand, seven hundred sixty".