141721061520 has 160 divisors (see below), whose sum is σ = 461703699072. Its totient is φ = 35915636736.

The previous prime is 141721061513. The next prime is 141721061533. The reversal of 141721061520 is 25160127141.

141721061520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 196264 + ... + 567416.

Almost surely, 2^141721061520 is an apocalyptic number.

141721061520 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 141721061520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230851849536).

141721061520 is an abundant number, since it is smaller than the sum of its proper divisors (319982637552).

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

141721061520 is a wasteful number, since it uses less digits than its factorization.

141721061520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371249 (or 371243 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

Adding to 141721061520 its reverse (25160127141), we get a palindrome (166881188661).

The spelling of 141721061520 in words is "one hundred forty-one billion, seven hundred twenty-one million, sixty-one thousand, five hundred twenty".