16361240502420 has 384 divisors, whose sum is σ = 60467226624000. Its totient is φ = 3628032145920.

The previous prime is 16361240502349. The next prime is 16361240502517. The reversal of 16361240502420 is 2420504216361.

16361240502420 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 1 + 2 + 405 + 0 + 242 + 0 = 666.

16361240502420 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 (36).

It is a congruent number.

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, 773469 + ... + 5772411.

It is an arithmetic number, because the mean of its divisors is an integer number (157466736000).

Almost surely, 2^{16361240502420} is an apocalyptic number.

16361240502420 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 16361240502420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30233613312000).

16361240502420 is an abundant number, since it is smaller than the sum of its proper divisors (44105986121580).

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

16361240502420 is a wasteful number, since it uses less digits than its factorization.

16361240502420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4999020 (or 4999012 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 16361240502420 its reverse (2420504216361), we get a palindrome (18781744718781).

The spelling of 16361240502420 in words is "sixteen trillion, three hundred sixty-one billion, two hundred forty million, five hundred two thousand, four hundred twenty".