16065232991424 has 896 divisors, whose sum is σ = 52717817856000. Its totient is φ = 4776603955200.

The previous prime is 16065232991399. The next prime is 16065232991473. The reversal of 16065232991424 is 42419923256061.

16065232991424 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 523 + 2 + 9 + 91 + 4 + 24 = 666.

It is a super-2 number, since 2×16065232991424² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 14486232982 + ... + 14486234090.

Almost surely, 2^{16065232991424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16065232991424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26358908928000).

16065232991424 is an abundant number, since it is smaller than the sum of its proper divisors (36652584864576).

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

16065232991424 is a wasteful number, since it uses less digits than its factorization.

16065232991424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 16065232991424 in words is "sixteen trillion, sixty-five billion, two hundred thirty-two million, nine hundred ninety-one thousand, four hundred twenty-four".