1601425620240 has 640 divisors, whose sum is σ = 5617886146560. Its totient is φ = 375340179456.

The previous prime is 1601425620181. The next prime is 1601425620367. The reversal of 1601425620240 is 420265241061.

It is a super-2 number, since 2×1601425620240² (a number of 25 digits) contains 22 as substring.

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, 2184754914 + ... + 2184755646.

It is an arithmetic number, because the mean of its divisors is an integer number (8777947104).

Almost surely, 2^{1601425620240} is an apocalyptic number.

1601425620240 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 1601425620240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808943073280).

1601425620240 is an abundant number, since it is smaller than the sum of its proper divisors (4016460526320).

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

1601425620240 is a wasteful number, since it uses less digits than its factorization.

1601425620240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 1601425620240 in words is "one trillion, six hundred one billion, four hundred twenty-five million, six hundred twenty thousand, two hundred forty".