1601113761500 has 192 divisors, whose sum is σ = 3857103169920. Its totient is φ = 575769600000.

The previous prime is 1601113761473. The next prime is 1601113761587. The reversal of 1601113761500 is 51673111061.

It is a congruent number.

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, 793808492 + ... + 793810508.

It is an arithmetic number, because the mean of its divisors is an integer number (20089079010).

Almost surely, 2^{1601113761500} is an apocalyptic number.

1601113761500 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 1601113761500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1928551584960).

1601113761500 is an abundant number, since it is smaller than the sum of its proper divisors (2255989408420).

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

1601113761500 is a wasteful number, since it uses less digits than its factorization.

1601113761500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 32.

Adding to 1601113761500 its reverse (51673111061), we get a palindrome (1652786872561).

The spelling of 1601113761500 in words is "one trillion, six hundred one billion, one hundred thirteen million, seven hundred sixty-one thousand, five hundred".