16091385120 has 576 divisors, whose sum is σ = 59609571840. Its totient is φ = 3943120896.

The previous prime is 16091385113. The next prime is 16091385127. The reversal of 16091385120 is 2158319061.

16091385120 is a `hidden beast` number, since 1 + 6 + 0 + 9 + 138 + 512 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (16091385113) and next prime (16091385127).

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

It is not an unprimeable number, because it can be changed into a prime (16091385127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 156226989 + ... + 156227091.

It is an arithmetic number, because the mean of its divisors is an integer number (103488840).

Almost surely, 2^16091385120 is an apocalyptic number.

16091385120 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 16091385120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29804785920).

16091385120 is an abundant number, since it is smaller than the sum of its proper divisors (43518186720).

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

16091385120 is a wasteful number, since it uses less digits than its factorization.

16091385120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 16091385120 in words is "sixteen billion, ninety-one million, three hundred eighty-five thousand, one hundred twenty".