16143390720 has 240 divisors, whose sum is σ = 57865888080. Its totient is φ = 4304683008.

The previous prime is 16143390677. The next prime is 16143390727. The reversal of 16143390720 is 2709334161.

16143390720 is a `hidden beast` number, since 1 + 614 + 3 + 39 + 0 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16143390727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 819709 + ... + 839171.

It is an arithmetic number, because the mean of its divisors is an integer number (241107867).

Almost surely, 2^16143390720 is an apocalyptic number.

16143390720 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 16143390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28932944040).

16143390720 is an abundant number, since it is smaller than the sum of its proper divisors (41722497360).

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

16143390720 is an equidigital number, since it uses as much as digits as its factorization.

16143390720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502 (or 19473 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 16143390720 in words is "sixteen billion, one hundred forty-three million, three hundred ninety thousand, seven hundred twenty".